Mr Eric Knappett

Stevenage, Hertfordshire
(199 Reviews)
Approved member since 2011
Call01438 905125

Skills & expertise

  • Roofer
    • Conservatory Roof Conversions
    • Glass Roof Installation
    • Rubber Roofing Installation
    • Tiled Conservatory Roof Installation
    • Warm Roof Construction
  • Windows / Doors / Conservatories
    • Aluminium Windows Replacement / Installation
    • Bifold Doors Replacement / Installation
    • Composite Front Doors Replacement / Installation
    • Conservatory Replacement / Installation
    • Double Glazing Replacement / Installation
    • Exterior Doors Replacement / Installation
    • French Doors Replacement / Installation
    • Orangeries
    • Patio Doors Replacement / Installation
    • Porches Replacement / Installation
    • Triple Glazing Replacement / Installation
    • UPVC Windows Replacement / Installation
    • Window Fitters
    • Windows and Doors

Company info

Conservatech is owned and managed by Eric Knappett, with over 35 years experience within the Conservatory Construction Industry. Sales & design is headed up by Allan Wilding, again with a wealth of experience in the design of glazed additions.

Being fully independent we are able to offer you the same quality products as the large national Companies but with better Customer Service, quality installation, personal project management and the obvious savings from attendant overheads.

We have Professional building & installation teams including  plastering, floor laying, and even final landscaping if required, we deal with all aspects of Planning Permission & Building Regulation drawings if and when required, a true turn key service.

We are members of FENSA, also holding the Trustmark for quality assurance, accredited members of The Consumer Protection Association who not only monitor our performance but also insure our 10 year guarantee and provide you with deposit indemnity protection. Refreshingly we have no high commissioned high pressure salesmen, your first initial and ongoing contact will be with Eric or Allan, and using their extensive knowledge and vast experience in conservatory design and associated building works, they will design your new dream conservatory.

In addition to constructing Quality Conservatories and Orangeries we also install Quality Energy Rated Replacement Windows, Entrance doors, Bi-folding Doors, French doors, Composite Doors & Patio doors.

We are proud of our levels of customer satisfaction and our enviable reputation and we know you will be too, in our last installation survey conducted by the Independent Warranty Association we achieved 100% customer satisfaction rating, so take a look around our online showroom, then give us a call, we look forward to meeting you.

Contact details

Reviews Summary

Average score based on 14 reviews in the last 12 months
199 Total Reviews

The reviews below represent customers' views and not the views of Checkatrade

Quote Accuracy
(14 Reviews)

Customer Reviews


To build a side extension with a wetroom and bedroom (for a disabled member member of our family).

Verified Review

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!

Location: SG1
Reviewed in: June 2023

The team took down our old glass conservatory and replaced it with a solid roof and bi-fold doors

Verified Review

The team were fantastic.. and the new conservatory looks amazing! They were friendly, polite and hard working and we couldn't have asked for better customer service from start to finish. Thanks everyone at Conservatech - we have already recommended you to several people

Location: SG6
Reviewed in: March 2023

Installed a new front door.

Verified Review

A good professional job. Polite and friendly tradesmen. Very pleased with the new door.

Location: SG1
Reviewed in: March 2023

Replacement conservatory roof for a warm roof.

Verified Review

Eric and his team did an amazing job. Old glass roof replaced with a warm roof and lights, plastering, new doors installed. His team were polite, friendly and extremely hard working.

Location: SG4
Reviewed in: March 2023

Replacement conservatory roof

Verified Review

Very pleased with the new roof. New trims also replaced

Location: SG1
Reviewed in: February 2023

Remove old porch and install new porch

Verified Review

Excellent work carried out in adverse weather conditions by a cheerful friendly team.

Location: SG2
Reviewed in: January 2023


  • Domestic Work
  • Free Estimates


Works in

Within 30 miles of Stevenage, Postcodes AL SG WD HP EN MK CB

Vetting Status

Fully Vetted Trade

Self Certified
Company Type
Sole Trader
Checkatrade T&Cs
Approved member since 2011
Trading address verified
ID Checked
Checkatrade Standards
Company Status
VAT Registered
Yes: 917 7869 67
Company Type
Sole Trader
Business Owners
Mr Eric Knappett
Insurance Details
Public Liability Insurance
Current: Self-Certified on: 09/11/2022
Insured By
Tokio Marine HCC

Accreditations and Memberships