Free Survey & Quote
Clear itemised price before anything is ordered, draughts, misting, and rattling frames sorted.
What We Arrange
We cover the full job, assessing frames, quoting in writing, and arranging a local installer to fit and certify the work.
We arrange a local installer to survey, fit, and certify replacement windows to FENSA standards.
Old frames are removed, the opening is checked, and a new FENSA-certified window is fitted and sealed.
The old frame is fully removed, the opening is inspected for rot and damp, and a new frame is fitted and sealed.
A new double-glazed unit is set into the existing frame opening, shimmed, sealed, and checked for level and square.
Misted units, broken hinges, and draughty seals are fixed at component level, no full replacement needed.
A misted, cracked, or broken pane is measured, matched, and replaced within the existing sound frame.
A maintenance visit clears drainage holes, lubricates hardware, and checks seal integrity across all frame types.
An on-site inspection checks frames, sealed units, trickle vents, and FENSA paperwork before you commit to any work.
Each window is tested for draughts, seal failure, and correct operation, with FENSA compliance verified.
A new uPVC unit is fitted into the existing sound frame using the insert method, no cladding disturbed.
Rotten or draughty timber frames are removed, the opening is inspected, and a new timber window is fitted and sealed.
We arrange a local installer to hang, align, and seal internal or external doors with an itemised quote.
New uPVC frames measured, supplied, and fitted to the opening.
Rotten or warped timber frames removed and replaced.
Aluminium frames fitted and sealed to the opening.
Sealed double-glazed units matched to the frame opening.
Trickle vents fitted to meet Building Regulations ventilation requirements.
Perimeter sealed airtight after fitting to stop draughts.
Existing frames taken away as part of the job.
Completed installation certified to FENSA standards.
Common Pitfalls Avoided
A rushed quote or the wrong frame choice creates problems that outlast the installation. Here is what to watch for.
A price given over the phone cannot account for frame condition, hidden rot, or the actual opening size, so the final bill often rises once the old frame comes out.
A local installer visits to measure the opening and record frame condition before any quote is issued, so the written price reflects the real job.
Fitting a pocket insert into a warped or rotten outer frame leaves the underlying problem in place, the new window will draught or fail within months.
The itemised quote sets out which method suits the job and why, so you choose between pocket insert and full-frame replacement before anything is ordered.
Delaying a decision while windows still partly function lets damp spread into the surrounding timber and masonry, turning a straightforward replacement into a larger structural repair.
Where repair is viable, it is set out alongside replacement in the written quote, so you can weigh the cost and risk before committing to either.
A replacement window fitted without FENSA certification or Building Regulations compliance can cause problems when selling or letting the property.
The local installer certifies completed work to FENSA standards, covering Building Regulations compliance for replacement windows in domestic properties.
Why Choose Us
We arrange the whole job, survey, written quote, fitting, and certification, through a local installer who knows the area.
A local installer visits the property to check frame condition, glazing, and hardware before a price is set, no guessing.
Glass, frames, labour, and old-frame removal are listed on separate lines so you can see exactly what you are paying for.
The scope and price are confirmed in writing before any materials are ordered or existing frames are touched.
Both routes are set out in the same quote, so you can make an informed decision before committing to either.
Installation is timed to keep the window opening unsecured for as short a period as possible and to suit the property.
Old frames and glazing are taken away by the installer, the site is left clear when the work is done.
How It Works
01
Describe what the windows are doing, draughts, misting, sticking, and we pass the enquiry to a local Havering installer.
02
The installer visits, records frame condition and glazing, and returns an itemised quote covering all materials, labour, and removal.
03
Once you agree the written scope and price, installation is scheduled to keep time on site short and disruption to a minimum.
How Window Installation Works
Understanding each stage helps you know what to expect, and whether repair or replacement is the right call for your windows.
The first question is whether replacement is needed at all. A draught caused by a worn seal or a misaligned hinge can sometimes be fixed without removing the frame. Where the frame itself is warped, rotten, or the sealed glazing unit has failed, repair tends to cost more than it saves. The on-site survey records frame condition, glazing integrity, and hardware before any decision is made, so the written quote can set out both options with separate costs.
Once replacement is agreed, the method depends on the outer frame. If it is still level, plumb, and structurally sound, a pocket insert fits the new double-glazed unit into the existing opening using shims and weatherproofing sealant, leaving the surrounding plaster and exterior finish undisturbed. Where the frame is compromised, a full-frame replacement strips the opening back to the masonry, checks for hidden damp or rot, and installs a new uPVC, timber, or aluminium frame with energy-rated glazing and trickle vents where Building Regulations require them.
After fitting, the installer checks that the window opens, closes, and locks correctly, and that the perimeter seal is airtight with no gaps at the reveals. Replacement windows in domestic properties require FENSA certification or local authority Building Control approval, the installer handles this as part of the job. Old frames and glazing are removed from site, and any making good around the internal reveals is completed before the installer leaves.
Pricing Estimates
| Job | Typical cost | Typical duration |
|---|---|---|
| uPVC window fitting | £495-£930 | 2-3 hours |
| Standard replacement window installation | £500-£1,400 | Half day |
| Full-frame window installation | £550-£1,500 | Half day to 1 day |
| Bay window installation | £1,490-£3,730 | 1 day |
| Whole-house window replacement | £4,350-£14,000 | 1-3 days |
How We Work
Havering Double Glazing helps homeowners, landlords, and developers arrange window and door work across Havering. We take the enquiry, arrange a local installer to survey the property in person, and return an itemised written quote before anything is ordered or removed.
About usWe exist to make window replacement straightforward for Havering homeowners by arranging a local installer who surveys, quotes, and fits without surprises.
Every quote is itemised in writing before any work or ordering begins.
Frames and glazing are measured on site, not estimated from photos or descriptions.
Repair and replacement options are both set out so you can choose with full information.
Work is scheduled to keep time on site short and limit disruption to the property.
Areas We Cover
We arrange local installers across a wide area, enter your postcode to check whether we cover your location.
Enter your postcode and tell us what the windows are doing, we will arrange a local installer to survey and quote the job.
Request a Free QuoteTell us the symptoms and the property type. We arrange a local installer to survey the windows and return a written quote before anything is ordered.