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Trusted Traders


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61 Reviews

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


Owned & managed by Eric Knappett, with the Sales & Design managed by Martin Beech, both Eric & Martin have over 60years of combined experience and 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. As Independently owned and a flourishing independent business operation, Conserv-A-Tech offer's the same high quality products of the larger national competitors, but with better project management, improved customer service. Our customers are real people...not just a contract number!
As the leading choice for conservatories, Glazed Extensions, Windows & Doors in Stevenage, we install throughout the entire Hertfordshire, Bedfordshire, Cambridgeshire and Buckinghamshire areas.
Call Eric or Martin today if your contemplating any of our services, we will guide you through the design process and build your dream addition.

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

61 reviews
Customer Service
Excellent, friendly job
Customer Service
Kept to time. Clean & tidy. Helpful at all times.
Jeffrey, Essex Posted on 06/09/2014 , work completed 06/09/2014