Endorsed by Which?

Conserv-a-tech

4.8

101 Reviews

Opening Hours
Today - –
  • Monday –
  • Tuesday –
  • Wednesday –
  • Thursday –
  • Friday –
  • Saturday - Closed
  • Sunday - Closed

What is a Which? Trusted Traders Hertfordshire Trading Standards Approved Endorsement?

Which? Trusted Traders has partnered with Hertfordshire Trading Standards to create a Hertfordshire Trading Standards Approved endorsement. In addition to our standard trading standards assessment, this trader has had a DBS check and is subject to a Trading Standards intelligence check

About

Owned & managed by its Director Eric Knappett, with the Sales & Design managed by Allan Wilding, both Eric & Allan have over 60 years of combined experience & a wealth of knowledge in this industry. Conserv-A-Tech is your market leader in glazed extensions, conservatories, orangeries, energy-rated windows, garage conversions, bi-folding doors in Stevenage. being Independently owned & a flourishing business,with an enviable reputation, Conserv-A-Tech offer's the highest quality products of the industry, much better project management, installation, and customer service,& all our staff are Employed.
Our customers are real people...not just a contract number!
As the leading choice for conservatories, Glazed Extensions, Windows & Doors based in Stevenage, we install throughout Hertfordshire, Bedfordshire, Cambridgeshire, Buckinghamshire.
Call Eric, Kim or Allan today, and start your journey with Conservatech.

What we do

  • Builders

    • Conservatories
    • Garage conversions
  • Double glazing

    • Double glazing installation
  • Doors

    • Bi-fold doors
    • Patio doors
  • More Services

    • orangeries
    • solid tiled roof glazed extensions
    • bi-fold door

Customer reviews

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4.8
101 reviews
Customer Service
4.8
Quality
4.9
Value
4.8
From Start to Finish: Seamless Garage Conversion Experience
Customer Service
Quality
Value
We used Conserv-A-Tech for our garage conversion, and it was the best decision we made. They came highly recommended by family, and we can see why. From the first call with Alan to the in-person discussions, communication was simple, polite, and professional. The flexibility to make small changes to the scope, even while the team was on-site, was a real bonus, nothing was too much trouble. Eric, who scoped the project and took measurements, was extremely knowledgeable and had a clear vision. What made the process stress-free was Eric’s full project management, he organised everything, including plastering and electrics, so we didn’t need to source trades ourselves. His contacts are excellent, and the quality of work reflects that. Special mention to Phil (HJP Electrical) and Charlie the plasterer. The entire team was polite, hardworking, and clearly took pride in their work. Each day they arrived knowing exactly what needed to be done, and their attention to detail was outstanding. The site was left spotless every evening, and all rubbish was removed. The project was completed within the agreed timeframe, with no hidden costs thanks to accurate planning from the start. Eric was always just a WhatsApp message away and responded promptly and proactively. We’re delighted with the final finish and will definitely use Conserv-A-Tech again for future projects.
Customer in Hertfordshire Posted on 11/12/2025 , work completed 31/10/2025