Approved Installer Scheme

We are Which?Trusted Trader certified installers, providing and installing exceptional Ultraframe products. We are also FENSA certified , giving you the peace of mind you need for new home improvement project.

Industry Leading Products

Working closely with market leading double glazing profiles, you will be investing into a product that will last and perform well for years. This includes our roof systems, windows, doors, conservatories and decorative details.

Excellent Service

Our team are experts in the house extension industry and have exceptional customer service skills. We work with you every step of the way to ensure your design needs are met and completed professionally.

Conserv-A-Tech: Our Mission

Conserv-A-Tech is owned and managed by Eric Knappett. With a wealth of experience within the conservatory construction industry, Eric has always been convinced that the key to our success is customer satisfaction, and from the very beginning he made a promise, “To put the customer first by providing complete professionalism and excellence of service, product and installation, together with real value for money for a superior product”.

The company’s ethos has always been based on superior work, honest factual advice, and customer satisfaction.

We specialise in the supply installation and construction of conservatories, orangeries, and extensions using a dedicated and highly skilled workforce who work to the company ethos of total customer satisfaction. We are able to offer affordable installations without the added cost of instructing outside contractors, even down to the internal final décor or the external landscaping if required. We are also your number one choice and local double glazing specialist in energy-rated glazing, composite doors and bi-folding doors.

Customer Testimonials

Customer in Hertfordshire

October 2024

This is the third time we have used conservatech, and once again we are very impressed by the quality of workmanship, efficiency and courtesy. Will definitely use again, highly recommended.

Customer in Hertfordshire

October 2024

We had our leaking, old conservatory roof replaced with a tiled roof and also had new windows and doors replaced. After meeting Alan and Eric everything was done on time and very professionally. They both suggested ideas for our conservatory which we're very welcome. The drawings of the design were very clear and we were kept up to speed regularly via e-mail and phone calls while the the roof etc were being made. We were given plenty of notice as to the start date. The fitters were excellent, with minimum disruption and had to work in challenging weather conditions. Everything was left secure, clean and tidy after each day. Kim, the secretary / admin assistant always informed us promptly when the company had received our staggered payments. We are really enjoying our new conservatory, it looks amazing, warmer and we spend alot of time in it already relaxing. We would thoroughly recommend the company and thank you Eric and Alan for your wonderful team, who are a credit to you.

Customer in Bedford

October 2024

I had a considerable amount of work carried out on my house by this super company. A 'warm roof' brick built extension on my kitchen, An amazing orrangery to replace the original, rather tired conservatory. All the windows replaced with flush casement windows (Iove them) and all external doors replaced. Extensive work carried out externally... existing patio lifted and relaid, new paving slabs laid around the garage and extension, and new fences and gates. I could go on..!! I just want to say thank you Eric. You have a fabulous, hard working and conscientious team who worked in some awful weather conditions who on a lighter note managed to go through a mountain of sugar and teabags and a leaning tower of Piza stack of coffee pods and biscuits! All work is guaranteed and I do feel confident that if any issues/problems were to arise in the future they would be dealt with accordingly.

Customer in Hertfordshire

July 2024

I contacted Conservatech to fit me a new garage back door as I was very impressed with the work they did when they replaced my old conservatory a few years ago. A Very friendly and a high standard of work from all who were involved in the job. Thank you.

Customer in Cambridgeshire

June 2024

Conserv-A-Tech is a standout company. From start to finish, they have been exceptional: from Allan's advice on beautiful thirties-style windows and Eric's thorough structural checks for the bay window replacement to the quality installation by Craig, Steve, and Ellis. Kim, who was in the office, also kept me updated. I discovered that the old aluminium frame windows I'd lived with for 23 years had not been installed correctly, and the bay roof void needed to be insulated. I had been living in a wind tunnel—but no longer. The new windows have transformed my property. They are stunning - and I look forward to the energy savings they will bring this winter. The work was carried out as scheduled, and the team happily answered all my questions. They are true professionals who take pride in what they do. I have asked Conserv-A-Tech back to undertake more work at my home.

Customer in Hertfordshire

May 2024

We have just had our old Conservatory replaced by Conserv-A-Tech And the service we received was brilliant, The quality of the conservatory and the workmanship was first class, The two fitter’s Leon and Ayrron were so helpful and tidy and are a credit To the company and we would highly recommend this company to anyone.

Customer in Central Bedfordshire

May 2024

From their first visit to the completion of the job they were professional, efficient, polite and tidy. I cannot recommend them highly enough.

Customer in Hertfordshire

April 2024

After a few years putting off the rebuild of our old, wooden conservatory we are delighted with the finished result. We wanted something that would not look out of place with our character property and garden and this blends in really well. it also has all the positives of a modern extension. From the beginning with Allan talking us through the plans, colours etc to Eric and his team, especially Leon and Arryon, with the actual construction, they were all very professional, polite, clean and tidy. Would 100% recommend

Customer in Hertfordshire

January 2024

Conservatech have just built us a modern, insulated extension from the kitchen to the garden. From our first meeting with Allan to the last day I cannot fault this company. The whole team are polite, respectful, professional and a pleasure to have met them all. They all worked extremely hard and cleaned up every day before leaving. We would like to thank Allan, Eric, Jack, Keenan, Leon, Ayrron, Phil, Craig and Steve for everything they have done for us. We wish you all much deserved continued success. Ellie and Nev Hinchliffe

Customer in Bedfordshire

January 2024

Conservatech replaced my 30 year old leaky conservatory with a very modern and insulated 'extension' which is open-plan from the house, including an orangery-style lantern roof light and triple bifold doors. From my first meeting with Allan to the final delivered product, everyone I worked with from Conservatech (Allan, Eric, Leon, Ayrron, Craig, Steve, Ellis, Jack, Phil and Charlie) were wonderful. Three of my neighbours commented on how polite they were. They worked hard, were professional, they cleaned the site every day, they didn't cut any corners, and they delivered an amazing product

Customer in Hertfordshire

November 2023

One of the few exceptional companies we have dealt with over the years. Can highly recommend them for their professionalism, friendly approach and tidiness, especially as we have dogs. Just as important their after sales service was very good. Would have no hesitation in contacting Conserv-A-Tech to carry out additional work.

Customer in Stevenage

June 2023

Brilliant Company! Worked to budget, finished within timeframe, helpful and supportive throughout. Highly recommend with no hesitation. From the very outset we felt reasurred with Conservatech. Eric drew up plans which he submitted successfully to Planning. He project managed everything, helping with ideas and advising options. We also opted to have the whole garden excavated and paved with new fencing which looks amazing! We cannot praise highly enough Eric's team who were friendly, reliable and trustworthy. Their high quality of work and attention to detail speaks for itself. V.Happy!

Customer in Central Bedfordshire

12 August 2022

We now have a beautiful high-quality conservatory thanks to the huge amounts of skill and hard work provided by the outstanding team at Conserv-a-tech.

Customer in Hertfordshire

10 July 2022

y conservatory roof had been leaking for some time, despite several visits by the original installers. I now have a wonderful new roof which looks fantastic. The service from every member of their staff I dealt with was excellent.

Customer in Bedfordshire

21 June 2022

I now am the proud owner of a fantastic conservatory. Every single worker that came to put my conservatory up were polite and cleaned up after their works. They kept me updated as to who was coming next and what they would be doing.

Customer in Hertfordshire

18 May 2022

Conserv-A-Tech stood out, as they were a local company. No high pressure sales from Martin Beech. Your money is registered with the Government Scheme, so both parties are protected. Eric Knappett, owner and Surveyor came and measured everything accurately, so that the order could be placed with Ultraframe. Kim in the office kept me updated. Phil, electrician made electrics safe. Conserv-A-Tech stood out, as they were a local company. No high pressure sales from Martin Beech. Your money is registered with the Government Scheme, so both parties are protected. Eric Knappett, owner and Surveyor came and measured everything accurately, so that the order could be placed with Ultraframe. Kim in the office kept me updated. Phil, electrician made electrics safe.

Customer in Central Bedfordshire

29 April 2022

A brilliant service from start to finish, professional, helpful and a great job done by all involved.

Customer in Hertfordshire

11 March 2022

Everyone involved was punctual, polite and tidy. There was good communication with the office throughout. I am really happy with my new conservatory and would definitely recommend Conservatech.

Customer in Hertfordshire

22 December 2021

No pressure or false promises which made a refreshing change. All the tradesmen were polite, clean and tidy and very good at what they did. The final sign off and we are over the moon, has transformed a tired old cold conservatory into a room we cannot keep out of. Many thanks to the whole team.

Customer in Hertfordshire

2 December 2021

Every single tradesman they sent was helpful, polite, worked efficiently and was more than happy to explain any part of the process. Our conservatory was dilapidated, so everything had to come down, leaving just a brick wall. The work began when they said it would and finished almost to the day they expected.

Customer in Cambridgeshire

5 October 2021

I cannot recommend this company highly enough - from the initial meeting we had such a good feeling about them, no pushy sales, just honest & knowledgeable and very competitively priced. The survey was really helpful and Eric came up with things I hadn't considered which I'm so grateful for now. They took away our old conservatory and it all happened so quickly, no waiting around for them to do other jobs.

Customer in Hertfordshire

14 September 2021

he salesman was very efficient and produced excellent plans. The site visit was very good, everything was explained in detail including free removal of the old conservatory including carpet. The installers were great and clearly a good team. I would recommend Conserv-a tech if asked.

Customer in Hertfordshire

1 September 2021

Outstanding company. Superb quality of workmanship. Attention to detail was second to none. The sales rep, surveyor, builders, installers, electrician, plasterer were all superb.

Customer in Central Bedfordshire

15 May 2021

Excellent friendly service and excellent value for money compared to large National companies. Would certainly recommend them.

Customer in Hertfordshire

10 March 2021

An excellent job by Conservatech from the initial survey/quote to the finished result - it's like a whole new conservatory, and we're wondering why we put up with the old polycarb roof for so long! Great work by the fitters (Leon and Connor) - tidy, courteous, and hard-working in sometimes difficult weather.

Customer in Luton

22 December 2020

We had our glass conservatory roof replaced with a livinroof which now means we can use the room all year round. The service was exceptional from quote to the finished installation. All workmen were polite and tidy using quality materials. The after service and communication has been very good and we would not hesitate to recommend this company.

Customer in Cambridgeshire

9 December 2020

We chose this company as they were one of only a handful in our area who were able to fit the conservatory roof we wanted. In addition they replaced the windows. The fitters turned up when they were expected, were polite and tidy and worked to a high standard.

Customer in Hertfordshire

8 November 2020

We can wholeheartedly recommend Conserv-a-tec. Workmen were friendly, accommodating and efficient. They left the work very cleanly. Once started everything was done on time when they said it would be. We are delighted with our new conservatory roof.

Customer in Hertfordshire

7 November 2020

The work they did was first class, from start to finish. We were very impressed with all aspects of the work, taking off and disposing of the old roof and installing the new one. We now have a brand new professionally designed Ultraframe roof to be proud of, all done to the agreed schedule and budget. Thank you Conserv-A-Tech.

Customer in Bedford

25 June 2020

Can't recommend this company enough. We were so fed up of our old leaky, too cold, too hot conservatory - it was a room I absolutely hated to be in. It is now my favourite room in the house. It's beautiful.

Customer in Hertfordshire

8 November 2019

Excellent work and organisation from start to finish. All trades, the designer, ground workers, bricklayer, fitters, plumber, electrician, Landscaper etc. were very professional, hard working, polite and courteous. Very pleased with the end result!

Customer in Greater London

5 November 2019

We were very happy and impressed with the work of the Conserv-a-tech. They replaced our conservatory roof that was leaking and also had a design problem. Eric redesigned the roof to make it technically much better and mor efficient. The whole team was extremely good, worked very well together and finished everything to our satisfaction.

Customer in Hertfordshire

17 October 2019

Conserv-a-Tech staff were very professional throughout. The team was effecient, thorough, courteous and helpful and a pleasure to have at our home. We are delighted with the finish of the new roof.

Customer in Cambridgeshire

23 May 2019

The roof arrived early, another plus and the the fitting team were both charming and worked to a high standard. We've had a fair bit of work done on the house but this is probably the best all round service we've had. And they gave us the best price

View Some Of Our Products

Conservatories

Glass Conservatory Roof Stevenage

Doors

Conservatories Stevenage

Extensions

Kitchen Extension Stevenage

Orangeries

Orangeries Stevenage

 

Quality Products

We only deal with industry-leading products to ensure you enjoy a warmer, safer and more comfortable home across the year. With Conserv-A-Tech, you’ll get more across the board.

 

Excellent Service

We have refined our service over the years, ensuring we always work to the highest standards of professionalism, reliability, efficiency and respect for your home.

 

Competitive Prices

Bringing the best to your home doesn’t always have to come at a shocking cost. We’ll offer you a price that is tailored to your needs, which will make things as cost-effective as possible.

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Contact us directly to see how we can help, or try our online quoting tool to get an instant online price in minutes!

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Areas We Cover

Here at Conserv-A-Tech, we offer bespoke double glazing to homeowners across Hertfordshire. The modern designs and incredible performance will instantly improve both the functionality and visuals of any property. The areas we cover include:

Stevenage, Biggleswade, Letchworth, St Albans, Cheshunt, Broxbourne, Hoddesdon, Welwyn Garden City, Cambridge, Radlett & the surrounding Hertfordshire areas.

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