TRJ CONSTRUCTION · CUSTOMER STORIES

TRJ Construction Reviews & Customer Testimonials

Read our customers’ experiences of building garden rooms, granny annexes, offices and extensions. Each story keeps the customer’s own words alongside the original project photographs.

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Fabulous Garden Annexe with high level finish

Fabulous Garden Annexe with high level finish

CUSTOMER EXPERIENCE · 01

Fabulous Garden Annexe with high level finish

"Before I hired TRJ Construction, I spoke to and reviewed many companies for my Garden Annexe. Many of them were on shaky financial grounds and used 3rd party postal and tel. numbers so be wary if you go elsewhere. Costi puts his name and his address to his work and that's because he's rightly proud of the end result. I highly recommend TRJ.

Great skill level, very flexible and adaptable to my strange requests and a high level of professionalism. I'm delighted with the final finish."

RIA

Before & after

Fabulous Garden Annexe with high level finish — before
Fabulous Garden Annexe with high level finish — after
BeforeAfter

CUSTOMER EXPERIENCE · 02

Excellent experience with TRJ Construction

"Costi has been excellent since our first contact with him, helping with planning, design and layout and solving problems that occurred as the build started seamlessly. He has always been open, honest and trustworthy, providing sound advice and helping us get every aspect of the build right. Costi takes immense pride in his work, and has fantastic attention to detail.

The quality of the build and finish has exceeded our expectations. Costi and his team have always been reliable and punctual, and his knowledge throughout the process combined with his dedication to perfection has really made our build and renovation better than we ever imagined it could be. I highly recommend TRJ Construction." -

Barney Weston

Before & after

Excellent experience with TRJ Construction — before
Excellent experience with TRJ Construction — after
BeforeAfter

CUSTOMER EXPERIENCE · 03

BRILLIANT JOB - HIGHLY RECOMMEND

"Costi and his team have just finished a truly brilliant job on our new garden room.
Access is very difficult at our house, Costi and the guys (Danni and Gabriel) took great care in moving everything through the house.
Costi really knows his stuff, gave great advice and dealt with issues with no fuss. The team are super punctual, polite, tidy and above all very professional in what they do. We have some further works planned later this year and TRJ are top of the list - highly recommend Costi and his team, thank you very much for a great project." -
Martin Narroway

Before & after

BRILLIANT JOB - HIGHLY RECOMMEND — before
BRILLIANT JOB - HIGHLY RECOMMEND — after
BeforeAfter

CUSTOMER EXPERIENCE · 04

Professionalism, Quality, Responsiveness-Granny Annexe

"Costi, Danny and his team of helpers were wonderful! The finished granny annexe was outstanding, really high quality fittings and a high standard of finish. They were always punctual, polite and friendly. Often going beyond what was required. I would recommend them to anyone, it was sad when the job was finished as they became part of the family ."-Kate Jeppesen


Before & after

Professionalism, Quality, Responsiveness-Granny Annexe — before
Professionalism, Quality, Responsiveness-Granny Annexe — after
BeforeAfter

CUSTOMER EXPERIENCE · 05

Garden Workshop & Office

"Costi was a real pleasure to work with, was realistic with schedules, professional & helpful going above and beyond what was expected/asked. He stayed within the budget and kept a track of it. TRJ are professional, hard working and skilled. Their work is done to a high standard, they stayed within budget & helped with additional things not in original quote in addition to supply advise and solutions if problems came up .I would definitely work with TRJ again! "


Before & after

Garden Workshop & Office — before
Garden Workshop & Office — after
BeforeAfter

CUSTOMER EXPERIENCE · 06

We Love Our Annexe - Great Build, Expert Company

"Costi was there from day one, advising us from the design stage right through to practical completion of the build for our self-contained Granny Annexe, ensuring we got what we required.

With his eye for detail, he and his team ensured all works were carried out and installed to the highest standard in meeting our requirements, which he delivered an Annexe, not only eye catching in our rear garden, but also provided all the facilities we required for our needs and Mira's parents. We would recommend him to build any Annexe or Out Building.

Mira & Mark "


Before & after

We Love Our Annexe - Great Build, Expert Company — before
We Love Our Annexe - Great Build, Expert Company — after
BeforeAfter

CUSTOMER EXPERIENCE · 07

Garden room

"Costi and the team have recently completed my garden room. Costi was brilliant at keeping us informed throughout the project sending us progress pictures throughout and the lines of communication were always open. I was so impressed by there attention to detail and the care they put into the project which I have to say is rare to find these days. Worth every penny and very happy with the finish. Highly recommend these guys!!"

Adam Day

CUSTOMER EXPERIENCE · 08

Costi and Trj truly fit the bill!

"Hi, I just wanted to take some time to talk about my experience of Trj construction, and the wonderful job that they have made of our garden room! Costi and his team were polite and focused on the work, and finished the work on time, even though a traffic accident involving their van could have set them back, but did not.

Costi himself is very passionate about his work, suggesting some details on our build that make it so much better than we originally envisioned!

As regards the build, I am of the belief that building a garden room with social space, office, shower room with toilet, plumbing, wi-fi and electric(all of which are hidden underground) to a very high quality of finish in 5 weeks to be astounding!

As you can tell, I would thoroughly recommend them, and would like to once again thank Costi and everyone at Trj for the work they have done! " Scott Hibbett


CUSTOMER EXPERIENCE · 09

Garden Gym in Bishop’s Stortford

“Whole process from original quote, construction, to finish was really smooth and without any issues”

Martin Huxley

Martin describes a smooth garden gym build, with Costi on site each day and helpful suggestions as the work progressed.

Review published .

Before & after

Garden Gym in Bishop’s Stortford — During construction
Garden Gym in Bishop’s Stortford — Completed gym
During constructionCompleted gym

CUSTOMER EXPERIENCE · 10

Chesham Acoustic Garden Music Studio

“we were very fortunate to have Costi completing the studio build for us”

Minnitt

The customer praises Costi’s studio construction team on a small site with difficult access and wet weather. The full review also describes problems with an earlier shed stage by a different crew, followed by remedial work and promptly resolved studio snagging.

Original story published .

Building work by Costi and his team for Garden Spaces. Customer feedback published by Garden Spaces.

Before & after

Chesham Acoustic Garden Music Studio — Before studio build
Chesham Acoustic Garden Music Studio — Completed studio
Before studio buildCompleted studio

CUSTOMER EXPERIENCE · 11

Brentwood Cedar Garden Room & Storage

“The workmanship was excellent and we would not hesitate to recommend Costi and his team”

Su Lin

Su Lin praises the detailed quotation, communication, efficient work and thorough clean-up on this garden room and decking project.

Review published .

Before & after

Brentwood Cedar Garden Room & Storage — During construction
Brentwood Cedar Garden Room & Storage — Completed room
During constructionCompleted room

CUSTOMER EXPERIENCE · 12

Cheshunt Granny Annexe

“I couldn’t be happier with the Granny Annex and it has far exceeded my expectations!”

Lynn

Lynn highlights the support from planning to handover, attention to detail and the finished annexe.

Review published .

Finished project views

Cheshunt Granny Annexe — Exterior
Cheshunt Granny Annexe — Interior
ExteriorInterior

CUSTOMER EXPERIENCE · 13

Amersham Granny Annexe

“Costi has built a fantastic annexe in our back garden.”

Simon

Simon praises the quality of the annexe, the team’s hard work and Costi’s care throughout the build.

Review published .

Before & after

Amersham Granny Annexe — During construction
Amersham Granny Annexe — Completed annexe
During constructionCompleted annexe

CUSTOMER EXPERIENCE · 14

Cheshunt Garden Office & TV Room

“Throughout the project, Costi's team displayed exceptional professionalism and efficiency.”

Sunny

Sunny’s Cheshunt garden room combines an office with space for TV and entertainment, alongside a sheltered outdoor area.

Review published .

Finished project views

Cheshunt Garden Office & TV Room — Exterior
Cheshunt Garden Office & TV Room — Interior
ExteriorInterior

CUSTOMER EXPERIENCE · 15

Epping Green Granny Annexe

“They were prompt, communicative at every stage and thoroughly professional.”

David

David describes a warm, well-finished garden annexe and praises the team’s communication, reliability and professional work.

Review published .

Before & after

Epping Green Granny Annexe — Before construction
Epping Green Granny Annexe — Completed annexe
Before constructionCompleted annexe

CUSTOMER EXPERIENCE · 16

Cedar Garden Office — Bury St Edmunds

“Having Costi do our garden office was an excellent decision. From day 1 he was professional and incredibly timely with everything.”

Dan Heskett

Dan praises the high standard of the garden office and says the project was completed within three weeks of first contact.

Review published .

Before & after

SIP panels and timber delivered to the garden before the office build
The cedar garden office framed by garden planting
During constructionCompleted office

CUSTOMER EXPERIENCE · 17

Watford Garden Recreation Room

“Costi & his team are very friendly and professional.”

Ashok

Ashok says the team helped him visualise the garden room, make the right choices and achieve a brilliant result.

Review published .

Before & after

Watford Garden Recreation Room — Before construction
Watford Garden Recreation Room — Completed room
Before constructionCompleted room

CUSTOMER EXPERIENCE · 18

Watford SIP Kitchen Extension

“The end result is a complete transformation of our house”

Kerrie

Kerrie describes a kitchen extension and house transformation, with design help, building control coordination and practical solutions during the work.

Review published .

Before & after

Watford SIP Kitchen Extension — Before extension
Watford SIP Kitchen Extension — Completed extension
Before extensionCompleted extension

CUSTOMER EXPERIENCE · 19

Chiswell Green Garden Room with Storage

“Fantastic company to work with from start to finish.”

Adam

Adam says the outbuilding has provided extra living space and praises its high specification and the team’s pride in their work.

Review updated .

Finished project views

Chiswell Green Garden Room with Storage — Exterior
Chiswell Green Garden Room with Storage — Interior
ExteriorInterior

CUSTOMER EXPERIENCE · 20

Garden Piano Room, Waltham Saint Lawrence

“The build team were excellent, so polite and professional, always turning up early and working until late.”

Padfield

The customer praises the professionalism and working hours of the team on the garden piano room.

Original story published .

Building work by Costi and his team for Garden Spaces. Customer feedback published by Garden Spaces.

Finished project views

Garden Piano Room, Waltham Saint Lawrence — Exterior
Garden Piano Room, Waltham Saint Lawrence — Piano room interior
ExteriorPiano room interior

CUSTOMER EXPERIENCE · 21

Tunbridge Wells Garden Gym, Office & Ensuite

“Just to say we are delighted with our Garden Room”

Conroy

The customer praises the build team and recommends Garden Spaces after completion of this gym and office with an ensuite.

Original story published .

Building work by Costi and his team for Garden Spaces. Customer feedback published by Garden Spaces.

Finished project views

Tunbridge Wells Garden Gym, Office & Ensuite — Exterior
Tunbridge Wells Garden Gym, Office & Ensuite — Interior
ExteriorInterior

CUSTOMER EXPERIENCE · 22

Garden Room with Ensuite Shower in Havering

“I am really happy with the build and how it has helped our family with more space.”

Bedford

Customer feedback on this Havering garden room with ensuite highlights the additional space it gave the family.

Original story published .

Building work by Costi and his team for Garden Spaces. Customer feedback published by Garden Spaces.

Finished project views

Garden Room with Ensuite Shower in Havering — Exterior
Garden Room with Ensuite Shower in Havering — Interior
ExteriorInterior

CUSTOMER EXPERIENCE · 23

Garden Gym and Office with Storage in Putney

“the building team was very good, quick and precise”

Duquenoy

The customer praises the building team on this Putney garden gym and office with integrated storage.

Original story published .

Building work by Costi and his team for Garden Spaces. Customer feedback published by Garden Spaces.

Finished project views

Garden Gym and Office with Storage in Putney — Exterior
Garden Gym and Office with Storage in Putney — Gym interior
ExteriorGym interior

CUSTOMER EXPERIENCE · 24

Kidderminster Garden Room & Deck

“Yes. They were outstanding – work ethic, professionalism, courtesy and standard of workmanship.”

Mezzone

Customer feedback on the Kidderminster garden room recognises the build team’s workmanship and courtesy.

Original story published .

Building work by Costi and his team for Garden Spaces. Customer feedback published by Garden Spaces.

Finished project views

Kidderminster Garden Room & Deck — Garden overview
Kidderminster Garden Room & Deck — Completed room
Garden overviewCompleted room

CUSTOMER EXPERIENCE · 25

Multifunctional Garden Pavilion in Beckenham

“The building team were first class. Turned up on time and were clean and tidy. Finished on time too.”

Wood

The customer praises the punctuality, tidiness and on-time completion of the multifunctional Beckenham garden pavilion.

Original story published .

Building work by Costi and his team for Garden Spaces. Customer feedback published by Garden Spaces.

Finished project views

Multifunctional Garden Pavilion in Beckenham — Exterior
Multifunctional Garden Pavilion in Beckenham — Games room interior
ExteriorGames room interior

Three original project photographs are available in the archive.

CUSTOMER EXPERIENCE · 26

Yoga & Osteopathy Studio in Tunbridge Wells

“Again, we are delighted with the finished building and will be sure to tell our friends! Thank you.”

McNeill

The customer expresses delight with the completed yoga and osteopathy studio in Tunbridge Wells.

Original story published .

Building work by Costi and his team for Garden Spaces. Customer feedback published by Garden Spaces.

Finished project views

Yoga & Osteopathy Studio in Tunbridge Wells — Exterior
Yoga & Osteopathy Studio in Tunbridge Wells — Treatment room
ExteriorTreatment room

CUSTOMER EXPERIENCE · 27

Rendered SIP Living-Room Extension in London

“the building team were so efficient!”

Mr and Mrs Bryant

Customer feedback on this rendered living room extension recognises the building team’s efficiency.

Original story published .

Building work by Costi and his team for Garden Spaces. Customer feedback published by Garden Spaces.

Finished project views

Rendered SIP Living-Room Extension in London — Exterior
Rendered SIP Living-Room Extension in London — Interior
ExteriorInterior

CUSTOMER EXPERIENCE · 28

Englefield Green Garden Office & Kitchenette

“The on-site team were excellent, very hard working and finished in just over 3 weeks, despite some awful weather conditions.”

Frog Bikes Ltd

Frog Bikes describes the on-site team’s hard work in difficult weather on its garden office with kitchenette.

Original story published .

Building work by Costi and his team for Garden Spaces. Customer feedback published by Garden Spaces.

Finished project views

Englefield Green Garden Office & Kitchenette — Exterior
Englefield Green Garden Office & Kitchenette — Office in use
ExteriorOffice in use

CUSTOMER EXPERIENCE · 29

Craned Garden Room in Central London

“Throughout the process Costi has been very meticulous, hard-working, diligent and prompt.”

Central London customer

The customer highlights Costi’s careful approach and solutions to the construction challenges on this craned garden room project.

Customer feedback from the project archive. Date not published.

Before & after

Craned Garden Room in Central London — Crane installation
Craned Garden Room in Central London — Completed room
Crane installationCompleted room

CUSTOMER EXPERIENCE · 30

Ashtead Garden Office & Gym

“Costi is professional, very knowledgable, always diligent and super passionate about building the very best building he can.”

Paul Gygi

Paul praises the quality of the garden office, open communication and the team’s conscientious approach.

Customer feedback from the project archive. Date not published.

Finished project views

Ashtead Garden Office & Gym — Exterior
Ashtead Garden Office & Gym — Interior
ExteriorInterior

CUSTOMER EXPERIENCE · 31

Mill Hill Garden Room with Shower & Kitchenette

“From beginning to end nothing was a problem. No mess, no fuss, no intrusion. Completed early. Solution for everything.”

Mill Hill customer

Customer feedback on this Mill Hill garden room with shower room describes a straightforward build and an early completion.

Customer feedback from the project archive. Date not published.

Before & after

Mill Hill Garden Room with Shower & Kitchenette — Before construction
Mill Hill Garden Room with Shower & Kitchenette — Completed room
Before constructionCompleted room

CUSTOMER EXPERIENCE · 32

Garden Art Studio in Crouch End, London

“I’m delighted with my studio! Many thanks for your invaluable input. Costi and his team have been great.”

Hannaford

Customer feedback from this Crouch End art studio recognises the team’s work and helpful input.

Customer feedback from the project archive. Date not published.

Building work by Costi and his team for Garden Spaces. Customer feedback published by Garden Spaces.

Finished project views

Garden Art Studio in Crouch End, London — Exterior
Garden Art Studio in Crouch End, London — Interior
ExteriorInterior

CUSTOMER EXPERIENCE · 33

Friern Barnet Garden Studio & Workshop

“Thank you so much for building our garden room/studio, it looks fantastic”

Mrs Crosby

Mrs Crosby praises the communication and diligent work on the garden studio and workshop.

Customer feedback from the project archive. Date not published.

Building work by Costi and his team for Garden Spaces. Customer feedback published by Garden Spaces.

Finished project views

Friern Barnet Garden Studio & Workshop — Front view
Friern Barnet Garden Studio & Workshop — Side view
Front viewSide view

CUSTOMER EXPERIENCE · 34

Sevenoaks Garden Gym, Office & Sedum Roof

“Thank you very much for creating such a wonderful building and for making it all seem so easy.”

Mr Scott

Mr Scott praises Costi and his team for the garden gym and office beside the swimming pool.

Customer feedback from the project archive. Date not published.

Building work by Costi and his team for Garden Spaces. Customer feedback published by Garden Spaces.

Finished project views

Sevenoaks Garden Gym, Office & Sedum Roof — Garden view
Sevenoaks Garden Gym, Office & Sedum Roof — Poolside view
Garden viewPoolside view

CUSTOMER EXPERIENCE · 35

Highgate Garden Gym with Storage

“The gym looks absolutely amazing! It all went so smoothly and the guys were an absolute delight to have around.”

Tenner

The customer describes a smooth build and a positive experience with the team on this Highgate garden gym with storage.

Customer feedback from the project archive. Date not published.

Building work by Costi and his team for Garden Spaces. Customer feedback published by Garden Spaces.

Finished project views

Highgate Garden Gym with Storage — Exterior
Highgate Garden Gym with Storage — Gym interior
ExteriorGym interior

CUSTOMER EXPERIENCE · 36

London Garden Room with Storage & Decking

“A quick note to say how superb your installation team are under Costi.”

Borges

Borges praises the installation team’s progress and the finished garden room with storage.

Customer feedback from the project archive. Date not published.

Building work by Costi and his team for Garden Spaces. Customer feedback published by Garden Spaces.

Finished project views

London Garden Room with Storage & Decking — Exterior
London Garden Room with Storage & Decking — Interior
ExteriorInterior

CUSTOMER EXPERIENCE · 37

Experienced & Reliable Company!

"Experienced, reliable and professional. I was shopping around for a while before deciding to go with TRJ Construction for my garden office. I wanted a company who had experience and a portfolio of work proving they were up to the job. Costi came to quote and he was the only person who actually got down and lifted the drain lid to check what was required.

It was at that point I knew he wasn't shy of work and meant business. I was kept in the loop before the build and throughout. They started the job early which was great to see and subsequently finished it early. They didn't miss a day and turned up on time everyday. They exceeded my expectations as I thought it would take an extra week.

Costi is extremely experienced in many aspects and does everything to top standard. He is obviously one of those people that can turn their hand to anything and do it to a very high standard. He knows his stuff and this is valuable in itself when getting advice on various parts of the build.

Nothing was too much trouble and if something was wanted / required they would find a way to get it done. Also they were very accommodating if changes were made during the build. Overall I am extremely happy with TRJ Construction and cannot recommend them enough.

If you want a company with 10+ years experience who have done this countless times before then this is the way to go. Well done guys and keep up the great work! "

Emilio Giordano -Ongar


CUSTOMER EXPERIENCE · 38

Work from Home Garden Room

“Costi and his team from TRJ Construction built a garden cabin for me and I couldn't be happier with the result. It has been a positive experience throughout. Costi brings a lot of experience with him, provided a competitive quote, managed expectations and timelines well. As a customer, I really felt how much Costi cared about the project and how important it was to him to deliver it to the best possible standard. Thank you, Costi..”

Tobias Philipps ,London

CUSTOMER EXPERIENCE · 39

Recreation Room in Barnet

“I must say that this Garden room project with Costi has been a good journey. He has been very accommodating and understanding throughout. His work is excellent and he puts his heart and soul into his work. I have worked with other builders in the past and he is by far the best I've come across.

I am so happy with the results that I can't thank him enough. Great job Costi, and many many thanks again and I hope to see you again on another project.🙂."

Yasmine Toorabally ,Barnet

CUSTOMER EXPERIENCE · 40

Man Cave and Office in Bromley

"Costi and the guys at TRJ were exceptional! They were courteous, punctual, professional and exquisite workmanship. I couldn't ask for anymore and I'm confident anyone else who is considering using his service will agree. Highly recommend."

Futing Li ,Bromley

CUSTOMER EXPERIENCE · 41

Garden Living Annexe — West Sussex

“Costi and his team were very organized and great communicators with what was happening with our annex build each day. Suitable advice was given on the best outcome of how things were placed and reasons behind them. Every day the team were hard working and leaving the site tidy at the end of each day.

They were actually a pleasure to have here as always smiling and easy to approach. They have done a great professional job and we are very happy with their level of professionalism and hard work. What was very noticeable was the level of pride and care and effort they put into the end product.

Thanks guys :) We would be very happy to recommend Costi and his team to others.”

Sian & Alex Rogers

CUSTOMER EXPERIENCE · 42

Garden Room for Cinema Space

“I wanted to let you know what a good job Costi & his team have done for us over the last few weeks -we're really happy with the result and are really looking forward to getting it kitted out as our perfect games room.

Costi and his team were brilliant -they seem to work very hard and very efficiently, were polite and helpful at all times and left the site completely tidy every night. Costi was really helpful in guiding us to a really sensible solution for storing our table tennis topper and also in advising us as to how our home cinema set-up should work.

I also appreciated that he gave us warning in advance of when we needed to make decisions -always helpful on a project like this. Additionally I appreciate his attention to detail -very reassuring. I'd happily recommend him, and his team, to anyone else.-”


Smith

CUSTOMER EXPERIENCE · 43

Gym Room

“Just a quick note to let you know that the studio was completed yesterday and it looks magnificent!

It’s difficult to find professionals like you guys these days.

I was very impressed from the very beginning when Brian visited, right through to yesterday afternoon when Costi handed me back my house keys.

Costi and his team were not only incredibly talented and impressive in there work ethic, they were also extremely polite and always left everything very tidy and clean. A real bunch of professionals and really nice guys!

The gym equipment is being delivered on Saturday and we are looking forward to getting started.

Thank you all very much for doing a superb job and I look forward to your final invoice."


Badini

CUSTOMER EXPERIENCE · 44

Garden Room with Storage Space

“We found the customer service to be both friendly and helpful at all stages ,Olly's various visits and designs, Donna's various communications and Costi's customer care on site. Indeed the entire building team were professional and skilled and have created a brilliant product……Costi and his guys work extremely hard and are proud of every Studio they build.

Whilst it's very early days we think that the completed studio will probably exceed our expectations. We haven’t entirely settled on the use of the main studio yet but the flexibility provided by the additional space is most welcome.

The appearance of the studio in the garden setting is very satisfying. We have emailed some of Costi's photo's onto several friends and their comments have all been extremely positive -who knows, you may even get a few more orders! We would certainly recommend Garden Spaces to prospective customers!

”


Syme

Versatile Space for Living !

Whatever you need a space for play ,work or accomodate we are here to help .

Granny Annexe

THE ORIGINAL CUSTOMER LETTER

Granny Annexe

The original project photograph and the customer’s letter. Open the letter full-size to read it.

The annexe project
Customer letter — open to read

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+44 7966 800519
costi@trj-construction.co.uk

39 Rushleigh Avenue ,Waltham Cross ,EN8 8PP

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