How Much Does Double Glazing Cost for a 3-Bed House?
A typical 3-bed semi has around 8 to 10 windows, so double glazing the whole house usually costs between £4,000 and £8,000 supplied and fitted. This guide shows full house prices by property size, what affects your total, and how to spread or reduce the cost. All prices are a guide and subject to a free survey.
Check If You Qualify
Double glazing a 3-bed house
Most 3-bed semi-detached homes in the UK have between 8 and 10 windows once you count the bedrooms, living room, kitchen, bathroom and landing. That is why a full house of double glazing for a 3-bed typically lands between £4,000 and £8,000 supplied and fitted.
The lower end applies to a smaller home with standard casement windows, while the upper end reflects more windows, larger or bay windows and higher-specification glass or frames.
For the wider picture across all property types, see our main double glazing costs guide, or browse the full range on our double glazed windows page.
Whole house double glazing prices by size
Indicative supply and fit costs for a full house of uPVC double glazing. All prices are subject to a free survey.
| Property size | Typical windows | Guide total fitted |
|---|---|---|
| 1-bed | 3–5 | £1,800–£3,200 |
| 2-bed | 5–8 | £2,800–£5,000 |
| 3-bed semi | 8–10 | £4,000–£8,000 |
| 4-bed | 10–14 | £6,000–£12,000 |
| 5-bed+ | 14+ | £8,000–£16,000 |
Prices are a guide only. Your exact cost depends on the number and size of windows, frame and glass specification and access, confirmed at a free survey.
What affects the total for a 3-bed
Two 3-bed houses can be priced very differently. The biggest factors that move your total are:
- ✓ Number of windows, with 8 to 10 typical but some homes having more
- ✓ Bay windows, which cost more than standard casements
- ✓ Window size, as larger openings use more glass and frame
- ✓ Frame and glass spec, including colour, finish and A++ ratings
- ✓ Access and floors, where upper-floor or awkward fits add labour
A free survey is the only way to confirm the exact window count and price for your home.
Ways to spread or reduce the cost
A full house of windows is a significant outlay, but you do not always have to pay it all at once. There are three common ways to make it manageable: grants and funding to reduce what you pay, finance to spread the cost into monthly payments, and phasing the work room by room if your budget is tight.
How to pay less: qualifying UK homeowners may be able to cut the cost of a full house of windows through funding rather than paying for the whole job themselves. See whether you could be eligible for help through our double glazing grants and our window replacement grant pages, then check your eligibility in under 60 seconds.
Related cost guides
Double Glazing Costs
Your complete guide to UK double glazing prices in 2026.
New Windows Cost
What new windows cost to supply and fit across the UK.
uPVC Window Prices
Real price ranges for uPVC windows by style and size.
Triple Glazing Cost
How much triple glazing costs and whether it is worth it.
3-bed house double glazing questions
How many windows are in a 3-bed house?
A typical 3-bed semi-detached house in the UK has around 8 to 10 windows, depending on the layout, whether there is a bay window, and how many windows are in the kitchen, bathroom and landing. A free survey gives an exact count for your home.
How much does it cost to replace all the windows in a 3-bed house?
As a guide, double glazing a full 3-bed semi costs around £4,000 to £8,000 supplied and fitted in the UK. The total depends on the number and size of windows, frame and glass specification, bay windows and access. All prices are a guide and subject to a free survey.
Can I get a grant for a full house of windows?
Qualifying UK homeowners may be able to reduce the cost of a full house of windows through funding rather than paying for the whole job up front. Eligibility depends on your circumstances and the funding available at the time. You can check whether you qualify in under 60 seconds using the funding checker.