Surrey · England
Sand Mastic in Hythe End
Sand mastic across Hythe End and nearby, with old sealant always removed completely and a 12-month guarantee.
- Wind and rain getting in round a sash window
- Modern sealant on a period surround
- Old cement repairs round a window that have failed
How to look after the new joints
How long the joints last depends on use and care. We suggest:
- Avoid patching sand mastic with silicone
- Keep sills and gutters clear so water drains away
- Get any rot dealt with first
- Ask us before painting near the mastic
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at rather than patching it.
An open joint round the box lets weather through. Left, the gap tends to get bigger.
How we handle sand mastic in Hythe End
We renew sand mastic around sash windows and doors set in stone or brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. If you have gaps where the frame meets the masonry and mastic round period door frames that has failed, we can help.
Mastic can only go onto a dry, clean joint, so window work in Hythe End is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
All of our work is guaranteed for twelve months, in Hythe End and everywhere else we cover.
- Place
- Hythe End (TW19)
- Region
- Surrey
- Guarantee
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Landlords, agents and businesses in Hythe End
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
Towns and villages near Hythe End
Other services in Hythe End
What happens if it’s left?
Not every draught comes from the sashes themselves. Open mastic joints round the box can let air in and new mastic seals them. In a small place like Hythe End, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
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 send us an email and we’ll talk you through it.
What you get with us
- Domestic, commercial and hotel work
- Fully insured
- We leave the area clean and tidy
- ARBOMaster approved applicator
Take a look at what affects the cost or customer reviews.
Sand mastic in Hythe End: local notes
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Frogmore House (about 3.2 miles north-west) are a reminder that the area around Hythe End has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Managing a site like Strode's College? Then its window and door frames need their mastic kept sound, just like a home’s. In the older streets around St John's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For landlords with property near Wraysbury station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Hythe End is about 1 mile north of Egham, in Surrey. From the centre of Hythe End to the outskirts, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. We cover 395 towns and villages across Surrey, large and small. Our Reading page covers work nearby, about 19 miles away.
Every address in TW19 is within our area for sand mastic. If you need sand mastic at a property on Feathers Lane, Sarsby Drive and Mafeking Road or a nearby road, our applicators can take on the job. We also cover Egham (1 mile south), Wraysbury (1 mile north-west), Egham Hythe (1 mile south-east), Englefield Green (2 miles south-west) and Staines-upon-Thames (2 miles south-east). We also work in nearby towns such as Guildford (14 miles south), Woking (9 miles south), Camberley (11 miles south-west), Epsom (14 miles south-east), Ewell (14 miles south-east) and Walton-on-Thames (7 miles south-east).
Local landmarks in Hythe End
We work in homes and buildings around The Magna Carta School, Manorcroft Primary School and Red Lion Public House, among other places. The nearest railway station is Wraysbury station, roughly 1 mile north. Nearby you will also find Windsor Castle (3.9 miles north-west) and Ashford Hospital (3.1 miles east). Green spaces nearby include Staines Reservoirs and St Ann's Hill.
Different surfaces, different methods
Timber door frames
Round a period front door, sand mastic gives the right look.
Stone surrounds
The stone is treated with care while raking out the old mastic.
What sealant work cannot fix
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Sash cords, weights and draught-proofing of the sashes
- Crumbling stone or brickwork round the window
- Rotten sashes, sills or window boxes (a joiner’s job)
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think before booking.
Surfaces we seal
- Brick reveals
- Tenement windows
- Timber door frames
- Period & listed homes
- Sash and case windows
- Stone surrounds
What happens on the day
There’s no need to move everything out before we come, only the area right around the joints. Everything nearby is protected, and the work takes a few hours per window, depending on the condition of the joints in most cases. In a small place like Hythe End, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check the window surrounds and agree which joints need renewing.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic isn’t too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
How to prepare
- Clear items away from the joints we are working on
- Keep pets and children clear of the area while we work
- For business premises, tell us about site rules or sign-in
Ask for a quote
We do not publish a price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, phone 0345 464 0079 or send us an email.
Related advice
Hythe End questions
Do you cover Hythe End for sand mastic?
Yes, Hythe End is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and tell us what needs doing.
I let a flat near Wraysbury station. Can you help?
Yes, we work for letting agents and landlords. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll send you a clear quote.
Can I do it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and you will get one quote.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that normally means someone at home.
Do you have insurance?
Yes. Mr Mastic is fully insured, and we’ve been doing sealant work for more than 20 years.
What is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It combines sand with a linseed-oil-based binder.
What does sand mastic cost?
Size, access and the old material all affect the cost. Ask us for a quote and we’ll talk you through it.
What affects the cost of sand mastic
You’ll get a clear quote before any work starts. It’s based on:
- Mould in or behind the old joints
- Any working-time requirements on site
- The amount of work
- The old material and how stubborn it is
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
Helping us quote
There’s no need for technical detail. Just tell us:
- How many joints, rooms or windows are involved
- How we’d reach the joints
- Whether it has been sealed before
- What’s wrong with the joints now
Getting a quote is simple: let us know what needs doing and where and its rough size. A few pictures by email make the job easier to understand.