Hampshire · England
Window & door mastic in Headley, Hampshire
Problem with your window and door frames in Headley? We cut out the old, prepare the joints and apply the right sealant.
- Rushed sealant from a window installation
- Cracked internal joints between frame and plaster
- White mastic on grey or black frames
About our window mastic in Headley
A window frame and the wall around it expand and shrink at different rates. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. We work on patio & French doors, timber windows & doors and aluminium frames, and people most often call us about cracked or shrunken mastic around the frame and draughty joints inside around the window.
Somewhere as small as Headley, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
Every job is covered by our one-year guarantee.
- Where
- Headley (GU35)
- Region
- Hampshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
Most of a good job is in the preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. In total, it usually takes most of a day for a typical house, less for a few frames. Somewhere as small as Headley, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Tell us about access, such as stairs, a lift or high-level joints
- Mention if the joints have been sealed before
Ask for a quote
For a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. You’ll have a clear quote before we start.
Read more
Looking after it afterwards
To keep the joints looking good and working properly:
- Clear any debris from frame drain holes
- Avoid harsh chemicals near the mastic
- Do not paint over the silicone
- Keep jet washers away from the mastic
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.
Landlords, agents and businesses in Headley
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
We work for letting agents and landlords as well as householders. Resealing between tenancies keeps a property looking cared for.
Quotes for window mastic in Headley
The price is agreed before any work begins. It takes into account:
- How easy the joints are to reach
- When we can work, for business premises
- The amount of work
- How many areas need sealing
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or drop us an email.
What we need to know
What to tell us when you ask for a quote:
- Access, such as stairs, a lift or height
- If it’s domestic, commercial or a hotel
- The address or postcode of the job
- The rough size of the job
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.
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Draughts through the window seals rather than the frame
- Faulty window hardware
- Damp coming through the wall itself rather than the frame joint
If you’re not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Where we work in Headley
- Composite doors
- Timber windows & doors
- uPVC windows
- Aluminium frames
- Window sills
- Patio & French doors
Common problems we fix in Headley
Joint shape matters as much as the product. A thin smear across a wide gap has nothing to it, while a joint packed solid can’t stretch. Backing rod sets the right depth.
Keep an eye out for any of the following:
- White mastic on grey or black frames
- Mastic that is falling out in pieces
- Rushed sealant from a window installation
- Draughty joints inside around the window
In the older streets around Church of All Saints, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Before booking anyone
- How the colour is chosen
- Is VAT in the price?
- The length of the guarantee
- What happens if they find a problem under the old sealant
What window mastic looks like in Headley
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Liphook station? Then renewing tired window mastic between tenants heads off draught and damp complaints. For site and facilities teams at buildings such as The Holme Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Headley is about 6 miles south of Farnham, in Hampshire. Homes, rented property, offices and hotels in Headley can book us for window mastic. The work is guaranteed for a year. Our Hampshire coverage runs to 683 places, and Headley is one of them. Our Portsmouth page covers work nearby, about 24 miles away.
Here we cover the GU35 postcode area for window mastic. Window mastic is available to properties on High Street, Crabtree Gardens and Pound Close and the roads around them. Close by, we work in Arford (1 mile north-east), Headley Down (1 mile east), Lindford (1 mile west), Standford (1 mile south-west) and Deadwater (1 mile west). Within a short drive, we also cover Farnborough (12 miles north), Fleet (11 miles north), Aldershot (9 miles north), Alton (7 miles west), Petersfield (9 miles south-west) and Yateley (15 miles north).
Landmarks near Headley
Around Headley, our work takes us to homes and buildings near Mill Chase Academy and The Holly Bush Inn. For rail, the closest station is Liphook station, roughly 3.4 miles south. A little further out are Chase Community Hospital (1.9 miles south-west). For a walk, there’s Deadwater Valley and Wheeler's Down.
Leave it or put it right?
Redecorating is a good moment to renew the mastic. A clean new bead makes new paint or render look finished, and it’s easier while the walls are being worked on anyway. Where a wall is exposed, as many are in small places like Headley, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.
Why us?
- An ARBOMaster approved applicator
- Sanitary silicone with an anti-fungal additive in wet areas
- White, clear, grey or another colour, product permitting
- A 12-month guarantee on all work
See our cost guide or our reviews.
Headley: your questions answered
Is Headley in your area for window mastic?
Yes, Headley is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing, and we will give you a clear quote.
I let a flat near Liphook station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Do you take out the old sealant first?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Do the sealants smell?
Some sealants have a smell while they cure. Ventilation helps.
Can you get sealant to suit coloured frames?
Normally, yes. Mention the frame colour when you ask for a quote and we will use the nearest match.
What should I tell you?
Tell us what needs doing and where, with pictures by email if possible. We’ll ask anything else we need to know.
Is it OK to seal over old sealant?
No. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
How long should I leave it?
That depends on the sealant used, so please follow the time we give you when we finish.