Slough · England
Huntercombe Sand Mastic
Sand mastic in Huntercombe from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Open joints round the window box
- Old sand mastic that has cracked, crumbled or fallen out
- Tired mastic found when preparing windows for paint
Signs you need sand mastic in Huntercombe
Timber frames move with the seasons. The movement cracks the mastic little by little.
Keep an eye out for these signs:
- Wind and rain getting in round a sash window
- Mastic dropping out of the joint
- Cement or filler used on old window joints that has cracked
- Gaps where the frame meets the masonry
For site and facilities teams at buildings such as Cippenham Infant School, larger buildings have plenty of frames, and the mastic around each one ages.
Comparing quotes
- Is VAT in the price?
- What happens if they find a problem under the old sealant
- Which sealant they’ll use, and why
- How long the guarantee is
About our sand mastic in Huntercombe
Across Huntercombe, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. If you have open joints round the window box and a silicone bead on a sash window that spoils the look, we can help, whatever the surface.
Around Huntercombe, conservatories, garden rooms and patio doors are often part of the house. Those joints need the same attention as the main windows.
Each job carries a 12-month guarantee, whatever its size.

- Place
- Huntercombe (SL1, SL6, SL2)
- Wider area
- Slough
- Guarantee
- 12 months on all our work
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Also near Huntercombe
What else we do in Huntercombe
What sealant work can’t fix
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Timber that has rotted
- Planning or listed building consent (your local planning authority decides)
- Putty and glazing repairs
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly.
Joints and surfaces we work on
- Brick reveals
- Sash and case windows
- Period & listed homes
- Timber door frames
- Tenement windows
- Stone surrounds
DIY sealant or a professional job?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
What happens on the day
There isn’t much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes a few hours per window, depending on the condition of the joints. A visit to Huntercombe is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Let us know if you’ve seen damp or leaks
- Move anything stored near the joints
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you’re ready, call 0345 464 0079 or send us an email.
Advice
Surface by surface
Stone surrounds
The stone is treated with care when the old mastic comes out.
Period and listed homes
A traditional finish suits a period property.
Questions from Huntercombe
Can you do sand mastic in Huntercombe?
Yes, Huntercombe is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job.
I let a flat near Burnham station. Can you help?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.
What’s sand mastic made of?
Sand mastic is a traditional material for pointing round windows and doors. It’s made with sand and a linseed-oil-based binder.
Which is right for my windows, sand mastic or modern sealant?
That depends on your windows. Period windows in stone or brick generally suit sand mastic and newer frames usually get a flexible sealant.
Do you guarantee sand mastic work?
You get our 12-month guarantee to all our work.
Is there any odour?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
How much does sand mastic cost in Huntercombe?
It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or email us with a short description of the job.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover Huntercombe, along with the rest of our area.
Sand mastic in Huntercombe: local notes
With historic houses such as Dorney Court (about 1.4 miles south-west) nearby, there’s older building stock in the area around Huntercombe as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as St. Andrew's Shared Church, the joint between an old wall and a newer frame is normally the first place rain gets in. Rented homes near Burnham station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
Huntercombe is about 2 miles west of Slough, in Slough. Jobs in Huntercombe get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across Slough, we cover 31 places, and Huntercombe is one of them. Reading is on our list too, about 15 miles from Huntercombe.
Our applicators cover all of SL1, SL6 and SL2 for sand mastic. Whether your property is on Bath Road, Clare Road and Conway Road or anywhere close by, our applicators can take on the job. We also cover Burnham (1 mile north), Cippenham (1 mile south-east), Lake End (1 mile south-west), Dorney (1 mile south) and Dorney Reach (1 mile south-west). We also work in nearby towns such as Langley (5 miles east), Upton (3 miles south-east), Datchet (4 miles south-east), Stoke Poges (3 miles north-east), Ditton (4 miles south-east) and Farnham Common (3 miles north-east). Huntercombe is among the bigger towns we cover in Slough.
Around Huntercombe
Locally, jobs take us to homes and businesses close to Haymill Valley, Westgate School and Ye Olde Huntercombe Arms, among other places. Huntercombe has its own railway station: Burnham station. Other landmarks nearby include Windsor Castle (3.3 miles south-east) and Upton Hospital (2.8 miles east). For a walk, there’s Taplow Lake and Bray Pit.
How to look after the new joints
To keep the joints looking good and working properly:
- Renew mastic before redecorating the windows
- Leave the new mastic unpainted
- Ask a joiner to look at soft timber first
- Avoid patching sand mastic with silicone
Look at the mastic when you look over the windows. Catching cracks early keeps repairs small.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry so early renewal protects both.
Why it’s worth doing now in Huntercombe
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic suits the building and finishes neatly against the masonry. Around Huntercombe, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Doing several joints on one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll send you a clear quote for the lot.
Why choose Mr Mastic in Huntercombe
- We are fully insured
- A 12-month guarantee on all work
- Approved under the ARBOMaster scheme
- Domestic, commercial and hotel work
