Surrey · England
Window & door mastic in Hammer, Surrey
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Hammer. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- A bead that doesn’t match the frame
- Leaking joints at the ends of sills
- Draughty joints inside around the window
Window mastic for homes and businesses in Hammer
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. Our applicators cut it out and replace it with a flexible, weatherproof sealant. We work on uPVC windows, patio & French doors and composite doors, and people most often call us about damp patches on the reveal after heavy rain and white mastic on grey or black frames.
Somewhere as small as Hammer, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.
- Where
- Hammer (GU27)
- Region
- Surrey
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Leave it or put it right?
Working on frames from a ladder with a sealant gun isn’t easy, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, in a sealant suited to the wall. Around Hammer, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you’re not sure whether it needs doing, ring 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Hammer
- We never seal over old sealant
- Every job guaranteed for a year
- Approved under the ARBOMaster scheme
- A choice of colours where the product allows
Take a look at how sealant jobs are priced or what customers say.
Landlord and commercial work in Hammer
We also work for property managers and facilities teams. We can quote a run of properties together.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
What window mastic looks like in Hammer
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.
In the older streets around St. Stephen's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For landlords with property near Haslemere station, renewing tired window mastic between tenants heads off draught and damp complaints. Schools such as Woolmer Hill School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Hammer is about 9 miles south of Farnham, in Surrey. Hammer gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Surrey coverage runs to 395 places, and Hammer is one of them. Portsmouth is on our list too, around 24 miles away.
All of GU27 is covered for window mastic, from the main roads to the quietest streets. Window mastic is available to properties on Hammer Lane, Moor Road and Copse Road. If you are just outside Hammer, we cover Woolmer Hill (1 mile south), Hammer Bottom (1 mile west), Shottermill (1 mile east), Bramshott Chase (1 mile north) and Linchmere (1 mile south-west). Larger places within reach include Guildford (14 miles north-east), Farnham (9 miles north), Cranleigh (12 miles east), Ash (11 miles north), Godalming (9 miles north-east) and Farncombe (10 miles north-east).
Local landmarks in Hammer
Typical jobs here are in homes near The Prince of Wales pub and Camelsdale Primary School and the streets around them. Hammer’s nearest station is Haslemere station, about 1.5 miles east. Nearby you’ll also find Haslemere and District Hospital (2 miles east). Not far away are Lynchmere Commons and Wheeler's Down.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
Other services in Hammer
What affects the cost of window mastic
For a quick quote, just ask. The main things that affect it are:
- The size of the job
- How easy the joints are to reach
- Working hours on commercial sites
- Whether there’s mould to deal with
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Asking for a quote
To help us quote quickly, let us know:
- Where the job is, and your postcode
- If someone has resealed it before
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
For window mastic in Hammer, ring 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.
Hammer questions
Do you work for landlords with property near Haslemere station?
Yes. We work for landlords and letting agents as well as homeowners. You can phone 0345 464 0079 or email us with the details for a clear quote.
Will you come out to Hammer?
Yes, Hammer is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you seal inside as well as outside?
Yes. Inside, the joint between frame and plaster is sealed neatly.
Do you work on first-floor windows?
Usually, yes. Access is planned before we start, so mention the height and anything in the way.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
Which products do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference.
Do you have insurance?
Yes, we are fully insured.
Is it messy?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- Condensation trapped between the panes
- Penetrating damp from a failed cavity tray or render
- Worn gaskets, brush seals or a door that has dropped
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
Where we work in Hammer
- Patio & French doors
- Composite doors
- Aluminium frames
- Window sills
- uPVC windows
- Timber windows & doors
Different surfaces, different methods
Window sills
Stone and concrete sills have their own joints, including the one between the sill and the frame above. We seal those with a sealant suited to masonry.
Patio & French doors
Water at the foot of a door frame isn’t always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We look for the cause first.
What we do, step by step
There’s no need to move everything out, just the space around the work. We protect the rest, and the work takes a few hours for a handful of frames, longer for a whole house in most cases. Somewhere as small as Hammer, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Preparing for the visit
- Mention any parking rules near the property
- Let us know if you’ve seen damp or leaks
- Tell us about access, such as stairs, a lift or high-level joints
How to 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 and give you a clear quote.