Best Fitters Ltd
Window & double glazing company registered in Dunstable, Bedfordshire
Registered address
51 CONWAY CLOSE, HOUGHTON REGIS, Dunstable LU5 5SB
✓ Active on Companies House
Companies House number15800661
IncorporatedJune 2024
2 years on the register
2 years on the register
Company typePrivate Limited Company
Trade (SIC 43320)Joinery installation (windows, doors & frames)
Accounts on fileMicro-entity accounts (smallest filing band) · last filed June 2026 · next due March 2028
Also registered for43210 - Electrical installation; 43220 - Plumbing, heat and air-conditioning installation; 43390 - Other building completion and finishing
Listed from the public Companies House register, not an endorsement. Quote requests go to FENSA or Certass registered installers covering your postcode, not necessarily this company. Accounts filing category reflects company size under Companies House rules, not service quality. Map location is approximate, based on the registered postcode.
Before you book Best Fitters Ltd
This page confirms the company is on the Companies House register. It does not confirm FENSA or Certass registration, insurance, or trading status — check those yourself first.
How to vet a window installer before you hire →Need a window installer in Dunstable?
Free, no-obligation quotes from FENSA or Certass registered installers near you.
Get Free Quotes →Window help for Dunstable
How do I get a quote from a window installer in Dunstable?
Use the "Get Free Quotes" form on this page. Your job details go to FENSA or Certass registered installers covering the LU postcode area, who contact you directly. Dunstable has 31 registered window and glazing businesses in this directory, though the installers who quote are not necessarily among them. It is free and there is no obligation.
Should I repair or replace my windows?
Repair makes sense for a failed seal (misted double glazing), a worn handle or hinge, or a damaged lock on an otherwise sound frame — usually a straightforward swap. Replacement is the better value once frames are warped, draughty, rotten (on timber) or past roughly 20 to 25 years old, or when several units across the house have failed. Ask the installer to price both where it's borderline.
Is new double glazing covered by a warranty?
uPVC frames typically carry a 10 year manufacturer or insurance-backed guarantee, and sealed glazed units are usually guaranteed separately for 5 to 10 years against misting. Register the guarantee after installation and keep the FENSA or Certass certificate — a buyer's solicitor will ask for it if you sell the property.
What is a FENSA or Certass certificate and why does it matter?
It's proof the window or door installation meets Building Regulations (thermal performance, safety glazing, ventilation) without a separate council building control sign-off. Without one, selling the property can mean paying for retrospective building control inspection or indemnity insurance, so keep the certificate with your house documents.