UPVC Doors and Windows St Albans, Hertfordshire - GRP Designs

GRP Designs are a market leading manufacturer of high quality double glazing for St Albans, covering a full range of UPVC windows,UPVC doors, composite doors,stable doors, french doors, patio doors, folding doors, and conservatories. We also supply fascia, soffit and guttering.

Founded in 1988, we are based in Northamptonshire and the majority of our deliveries are in central and southern England. We frequently deliver to the St Albans or Hertfordshire area.

We have continually invested in the latest manufacturing technology to ensure that we offer the highest quality products to our continually growing customer base. The use of quality materials and computer aided manufacture has meant that after 20 years we now achieve over 85% of our new business from recommendations.

Whilst GRP Designs is big enough to produce quality double glazing for St Albans we are also small enough to care and understand that our future success will always depend on providing the highest levels of both quality and service.

We offer transparent pricing through our online quotation systems and you can be confident of a fair price and excellent value for money. Buying from GRP Designs is an investment in your home, not an experience with a high pressure sales person!

These are the services / products that we offer in the St Albans or the Hertfordshire area
  • UPVC Windows
  • Aluminium Windows
  • UPVC Doors
  • Composite Doors
  • French Doors
  • Stable Doors
  • UPVC Folding Doors
  • Aluminium Bifold Doors
  • Patio Doors
  • Conservatories
  • Fascia Soffit Guttering

Supply and Installation Areas

GRP Designs are based in Kettering, Northamptonshire and operate across the East Midlands and surrounding counties.

Area of Operation St Albans Hertfordshire

Customer Feedback

Good product excellent fitter well mannered

Mr M H
Hertfordshire AL9 7UT


Product installation small business

Mr Mrs S S
Harlington Beds LU5 6LG


Very prompt deliver and quality installation being made to fell important to company quality feel of product range via internet

Ms A F
Long Marston Bucks HP23 4QL


Choice vfm email/telephone support

Mr D P
SE London SE13 6EP


Website Feedback

Easy to use

-bm@-igelmckie.plu-.--m
Enfield, EN6


The online quotation system, description of items, how the items are subdivided into categories

-ayden.-ci--rras@gmail.-o-
Luton, LU5


Online quotes is a breath of fresh air for when making initial enquiries and not wanting to take up too much time.

-.l--le-@-e-c-eur-pe.eu
Watford, WD7


Online quote possibility

-hee-a-1-@h-tmail.c-m
London, EC1V


The fact that you can get an instant quote

-22-l@y--o--co.--
Watford, WD5


Interactive create a door feature

--a--e--@-mai-.---
Watford, WD25


  • Installers were clean and tidy workers. They also arrived promptly at the agreed time. Quality products and value for money.

    Mr S, Silverstone

  • Polite friendly staff taking time to get customers needs identified. Very good clean installation.

    Mrs C, Desborough

  • Excellent products, excellent value for money comprehensive product display in showroom, friendly helpful polite hard working fitters.

    Mr & Mrs L, Flitwick

  • Clean tidy installation, very friendly approach from the fitters.

    Mrs A, Wellingborough

Doube Glazing Conservatory Ombudsmen Scheme Aluplast Window and Door Systems Smart Architectural Aluminium Schuco