Surrey · England
Sand Mastic in Haslemere
Problem with your window and door surrounds in Haslemere? We cut out the old, prepare the joints and apply the right sealant.
- Wind and rain getting in round a sash window
- Tired mastic found when preparing windows for paint
- Patchy fillers round a sash window
Sand mastic in Haslemere
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s a mix of sand and a linseed-oil-based binder and built up by hand. On older homes, it suits the building far better than silicone. If you have mastic dropping out of the joint and cement or filler used on old window joints that has cracked, we can put it right, whatever the surface.
In smaller places like Haslemere, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.
Your job is guaranteed for a year, as with all our work.
- Place
- Haslemere (GU27)
- Region
- Surrey
- Guarantee
- A year, on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What we do, step by step
We bring everything the job needs with us. Once we’ve agreed what’s being done, the area is protected and the work begins. It normally takes a few hours per window, depending on the condition of the joints. Parking around Haslemere is usually easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We start by checking each surround and agreeing the joints to renew.
- We rake out the old mastic and clean the joint.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
Getting ready for the visit
- Let us know about parking restrictions
- Tell us about any water getting in
- Keep pets and children clear of the area while we work
Get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Related advice
Leave it or put it right?
New sash windows are a major, costly change, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. In a smaller place like Haslemere, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
Why Haslemere clients choose us
- Homes, businesses and hotels
- We’re fully insured
- Any old sealant cut out fully, not covered over
- Sanitary silicone with an anti-fungal additive in wet areas
Read what affects the cost and customer reviews.
Different surfaces, different methods
Timber door frames
Doors face weather and wear and the mastic can crack early. It’s renewed by hand.
Stone surrounds
Stone openings are rarely perfectly straight, so the joint varies in width. Sand mastic is shaped by hand to suit.
Haslemere questions
Will you come out to Haslemere?
Yes, Haslemere is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you work for landlords with property near Haslemere station?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.
Is the work guaranteed?
Our one-year guarantee covers every job, sand mastic included.
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.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Is it messy?
No. We work neatly, protect the area around the joints and tidy up afterwards.
Where do you work from?
We work from Crawley. Our applicators cover Haslemere, along with the rest of our area.
Do you offer different sealant colours?
Normally, yes. White, clear and grey are common, and other colours are available for many products, and we’ll agree it with you first.
Honest limits
We’d rather tell you now than do work that won’t last, so these are the limits:
- Crumbling stone or brickwork round the window
- Whether work needs listed building consent
- Cracked or broken glass
If in doubt, call 0345 464 0079 or email us and we’ll say what we think.
Surfaces we seal
- Stone surrounds
- Sash and case windows
- Period & listed homes
- Timber door frames
- Brick reveals
- Tenement windows
What sand mastic looks like in Haslemere
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to Church of St Christopher include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Letting a property close to Haslemere station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Haslemere is about 11 miles south of Aldershot, in Surrey. From the centre of Haslemere to the outskirts, we cover sand mastic for every kind of property. 395 places in Surrey are on our list. You can also see our page for Crawley, about 23 miles away.
We work across the GU27 postcode area for sand mastic and the streets around it. Streets in the area include Church Road, High Street and Longdene Road, all of which we cover. With the A286 and A287 close by, Haslemere is simple for us to get to for sand mastic. We also cover Shottermill (1 mile west), Woolmer Hill (1 mile south-west), Hammer (1 mile west), Bramshott Chase (2 miles north-west) and Kingsley Green (2 miles south). Within a short drive, we also cover Guildford (13 miles north-east), Farnham (9 miles north), Cranleigh (11 miles east), Ash (11 miles north), Godalming (8 miles north-east) and Farncombe (9 miles north-east).
Local landmarks in Haslemere
Around Haslemere, our work takes us to homes and buildings near Woolmer Hill School, The White Lion Public House and Royal School Haslemere. Haslemere has its own railway station: Haslemere station. Well-known places in the area include Haslemere and District Hospital (0.6 miles north-east). Green spaces nearby include Upper Lake and Lynchmere Commons.
Do you need sand mastic in Haslemere?
Timber frames move with the seasons. That movement opens up the mastic joint over time.
It’s worth asking for a quote if you see:
- Window mastic to renew ahead of painting
- Draughty sash windows at the surround
- Crumbling sand mastic round a window
- Patchy fillers round a sash window
If you look after a building such as Shottermill Infant School, larger buildings have plenty of frames, and the mastic around each one ages.
Questions to ask before you book
- How the joint is cleaned and prepared
- What the cure time is
- What product goes in the joint
- Who turns up on the day
Landlord and commercial work in Haslemere
We work for landlords and agents as well as homeowners. Resealing between tenancies keeps a property looking cared for.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
Places near Haslemere
More services for Haslemere
Quotes for sand mastic in Haslemere
Every job gets its own quote. These are the things that affect it:
- The amount of work
- Whether old sealant or filler has to be cut out
- Any mould that needs treating
- Any working-time requirements on site
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we’ll go through it with you.
What to tell us for a quote
When you contact us, it’s useful to know:
- Roughly how big the job is
- Any access issues, like height or stairs
- Any previous sealing or DIY work
- What the problem is, such as mould, gaps, leaks or cracking
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. Whenever you are ready, phone 0345 464 0079 or send us an email.