Surrey · England
Earlswood Sand Mastic
Sand mastic in Earlswood from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Tired mastic found when preparing windows for paint
- Wind and rain getting in round a sash window
- Old sand mastic that has cracked, crumbled or fallen out
Sand mastic in Earlswood, done properly
For a listed home or one in a conservation area, ask your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. We’re often asked to deal with mastic round period door frames that has failed and draughty sash windows at the surround, across tenement windows, sash and case windows and period & listed homes.
Many houses in smaller places like Earlswood have conservatories, garden rooms or patio doors. Those joints need the same attention as the main windows.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we’ll put it right.
- Place
- Earlswood (RH1, RH2)
- Wider area
- Surrey
- Guarantee
- 12 months on all our work
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Common problems we fix in Earlswood
Rain on the window surround works into any crack and loosens it further. Exposed elevations normally fail first.
Any of these means the joints need attention:
- Mastic worn away on windows facing the weather
- Cracked mastic round a front door frame
- Patchy fillers round a sash window
- Mastic that needs renewing before redecorating
Rented homes near Earlswood (Surrey) station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
What your quote should include
- How much experience the applicator has
- What happens if the job turns out different
- Whether VAT is included
- When the joint can take water or movement
Earlswood: your questions answered
Is Earlswood within the area you cover?
Yes. Earlswood is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Earlswood (Surrey) station. Can you help?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear price.
Should I use sand mastic or silicone?
We will help you decide. Sand mastic suits many period homes, and modern sealants suit newer frames.
How long will you be here?
A typical job takes anything from a few hours to a full day, depending on how many windows, including the preparation. Your quote will say how long we expect yours to take.
Are you fully insured?
Yes. Mr Mastic is fully insured.
What is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It’s made with sand and a linseed-oil-based binder.
What do you need from me for a quote?
Let us know what needs doing and where, with photos by email if possible. If we need more, we’ll ask.
Do you offer different sealant colours?
We help you choose a colour that suits. The choice depends on the product the joint needs.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Plan mastic work ahead of painting
- Get any rot dealt with first
- Avoid patching sand mastic with silicone
- Look over the window mastic once a year
Don’t touch or press the mastic while it hardens. It forms a skin fairly soon, but takes longer to harden fully.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
Nearby places to Earlswood
More services for Earlswood
How it works
There isn’t much for you to do on the day. Point us to the joints and we will get on with it. The work itself takes a few hours for a single window, longer for several from start to finish. Parking around Earlswood is generally 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 check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- Where the joints are inside, avoid wetting them before we arrive
- For business premises, tell us about site rules or sign-in
Ask for a quote
We do not publish a price list, because every job is different. Instead, we give you a clear quote for your job. To arrange one, call 0345 464 0079 or send us an email.
Read more
Landlords, agents and businesses in Earlswood
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Frames and glazing around Earlswood
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as St John's Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Earlswood is about 1 mile south of Redhill, in Surrey. Earlswood gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 395 places across Surrey, large and small. For nearby work, see our Crawley page, about 8 miles away.
Every address in RH1 and RH2 is covered for sand mastic, from the main roads to the quietest streets. Local streets include Brook Road, Ifold Road and Emlyn Road, and we cover them all. You’ll find Earlswood on the A23, so it’s easy for us to get to. Nearby, we also carry out sand mastic in Meadvale (1 mile west), Redhill (1 mile north), South Earlswood (1 mile south), South Nutfield (2 miles east) and Holmethorpe (2 miles north). Within a short drive, we also cover Epsom (9 miles north-west), Horley (3 miles south), Ewell (9 miles north-west), Walton-on-Thames (15 miles north-west), Caterham (5 miles north-east) and Dorking (7 miles west).
Landmarks near Earlswood
Typical jobs here are in homes near The Flying Scud pub, Reigate School and Dunottar School. Earlswood has its own railway station: Earlswood (Surrey) station. Other landmarks nearby include The Belfry (0.9 miles north) and Surrey Fire Museum (1.5 miles north-west). Not far away are Colley Hill and Reigate Heath.
Quotes for sand mastic in Earlswood
Every job gets its own quote. This is what makes a difference:
- The type of sealant required
- The number and length of the joints
- How easy the joints are to reach
- The number of rooms or windows
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
What we need to know
What to tell us when you ask for a quote:
- Photos by email, if that is easy
- Roughly how big the job is
- Whether it’s a home or a business
- What’s wrong with the joints now
Need a quote? Please phone 0345 464 0079 or email us with a few details. We’ll explain what we’d do and send you a clear quote before work begins.
Why act early in Earlswood
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Around Earlswood, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and give you a clear price before work begins.
Why Earlswood customers choose us
- We leave the area clean and tidy
- Experience in homes, commercial sites and hotels
- Anti-fungal sanitary silicone in wet areas
- 20+ years of sealant experience
Read what affects the cost and customer reviews.