Surrey · England
Window Mastic in Donkey Town
Mastic around window and door frames, sills and patio doors for Donkey Town, backed by a one-year guarantee. Ask us for a quote.
- Old mastic that has gone black or come away
- Hard, cracked sealant around windows
- White mastic on grey or black frames
The process
On the day, we start by going over the job with you, so you know exactly what we are doing. Surfaces next to the work are protected before work begins. Most jobs take a few hours for a handful of frames, longer for a whole house. Somewhere like Donkey Town needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
How to prepare
- Tell us about access, such as stairs, a lift or high-level joints
- Clear the area around the work
- Mention any sign-in or site rules at work premises
Get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Related advice
Window mastic in Donkey Town, done properly
A cold draught around a closed window often comes from the frame edge. A new joint stops the air getting through and quietens the whistle on windy days. If the draught is through the window seals instead, we’ll tell you. We work on window sills, composite doors and patio & French doors, and people most often call us about old mastic that has gone black or come away and rain getting in at the frame or under the sill.
Homes in small places like Donkey Town often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
You’re covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or send us an email.
- Where
- Donkey Town (GU24)
- Region
- Surrey
- Cover
- 12 months on all our work
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Towns and villages near Donkey Town
Also in Donkey Town
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Why it’s worth doing now in Donkey Town
Running fresh sealant over the old joint is tempting, but new sealant cannot bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. Proper resealing starts with removing the old joint. Where a wall is exposed, as many are in small places like Donkey Town, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first.
Why book with us
- A sealant colour to suit the surroundings
- Over 20 years’ experience
- We agree the colour with you first
- White, clear, grey or coloured to suit, where the product allows
Read what affects the cost or what customers say.
What window mastic looks like in Donkey Town
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For landlords with property near Bagshot station, renewing tired window mastic between tenants heads off draught and damp complaints. If you look after a building such as Gordon's School, the mastic around its windows and doors needs looking after like any other building’s.
Donkey Town is about 3 miles east of Camberley, in Surrey. Across the GU24 area, we can carry out window mastic at your property. 395 places in Surrey are on our list, from the larger towns to small villages. For nearby work, see our Reading page (16 miles or so).
All of GU24 is covered for window mastic, from the main roads to the quietest streets. If you need window mastic at a property on Broad Street, Orchard Close and Ashley Way or anywhere close by, our applicators can take on the job. We also cover the places around Donkey Town: Lucas Green (1 mile south-east), West End (1 mile east), Lightwater (1 mile north-west), Bisley (1 mile south-east) and Penny Pot (2 miles east). Within a short drive, we also cover Guildford (7 miles south-east), Woking (4 miles south-east), Camberley (3 miles west), Farnham (11 miles south-west), Egham (8 miles north-east) and Walton-on-Thames (11 miles east).
Local landmarks in Donkey Town
Around Donkey Town, our work takes us to homes and buildings near Holy Trinity CofE Primary School and Brentmoor Heath, among other places. Donkey Town’s nearest station is Bagshot station, roughly 2.3 miles north-west. Nearby you will also find Brookwood Hospital (2.3 miles south-east) and The Museum of The National Rifle Association (1.9 miles south). The countryside around Donkey Town includes Brookwood Lye.
Landlord and commercial work in Donkey Town
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
If you manage several properties in or around Donkey Town, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
What we’re called out for in Donkey Town
Joints that are too thin or too deep fail early. A skim of sealant over a wide gap soon tears, while a joint packed solid cannot stretch. Backing rod sets the right depth.
Keep an eye out for any of the following:
- Rain getting in at the frame or under the sill
- Mastic that has split away from the wall
- Gaps left after new windows were fitted
- Old mastic that has gone black or come away
Homes close to Holy Trinity include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
Before you book anyone
- How the joint is cleaned and prepared
- How long to leave it before use
- What guarantee comes with the work
- What insurance they hold
When it is not the sealant
To be straight with you, there are a few things sealant will not fix:
- A frame that has rotted at the joint
- Worn gaskets, brush seals or a door that has dropped
- Penetrating damp from a failed cavity tray or render
If you’re not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer before you book.
What we seal
- Patio & French doors
- uPVC windows
- Timber windows & doors
- Aluminium frames
- Window sills
- Composite doors
How the job changes by surface
uPVC windows
We clean the frame edge carefully so the plastic isn’t marked, then the sealant goes in between frame and wall.
Aluminium frames
Coated aluminium needs a compatible sealant. We use a neutral-cure product.
Questions from Donkey Town
Is Donkey Town within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is Donkey Town in your area for window mastic?
Yes. We work across London and the South East, and Donkey Town is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing.
Can I paint over the new sealant?
That depends on the product. Silicone is not paintable, but some hybrid sealants are. Mention any painting plans before any work starts.
Can you do the inside joint as well?
Yes. Draughts often come through the inside gap too, so it can be worth sealing both.
Is it OK to seal over old sealant?
No. Fresh sealant doesn’t stick to old sealant, and anything trapped underneath, including mould and water, stays there. It all has to come out first.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
How long should I leave it?
Different products cure at different speeds, so follow the cure time we give you.
Do you work for letting agents?
Yes, often. Several properties can be quoted together, and between tenancies is a good time for the work.