Surrey · England
Sand Mastic in Nalderswood
Our applicators work in Nalderswood on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- A silicone bead on a sash window that spoils the look
- Wind and rain getting in round a sash window
- Old sand mastic that has cracked, crumbled or fallen out
About our sand mastic in Nalderswood
Sand mastic skins over fairly quickly but full hardening takes longer. Traditionally, sand mastic is left unpainted and we’ll advise if you’re redecorating. If you are dealing with gaps between timber frames and stone or brick and draughts and rain around sash boxes, we can put it right.
Outdoor sealant needs dry, clean surfaces, so work on frames around Nalderswood is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
There’s a 12-month guarantee on every job, large or small.
- Place
- Nalderswood (RH2)
- Wider area
- Surrey
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
Aftercare is simple, and it makes a real difference:
- Go gently near the mastic when preparing windows
- Check with your local planning authority if your home is listed
- Inspect the joints round the windows every year or so
- Clear gutters so water doesn’t pour onto the windows
When preparing windows for paint, take care around the mastic. Hard scraping can loosen it.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
Also near Nalderswood
Also in Nalderswood
Landlords, agents and businesses in Nalderswood
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
If you manage several properties in or around Nalderswood, several properties can be quoted together. Send us the addresses and the work at each.
Frames and glazing around Nalderswood
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Salfords station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about. If you live in an older home near Church of St Bartholomew, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Managing a site like Burys Court School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Nalderswood is about 3 miles west of Horley, in Surrey. Whether you are in the middle of Nalderswood or further out, we cover sand mastic for every kind of property. Across Surrey, we cover 395 places, Nalderswood among them. Our Crawley page covers work nearby (6 miles or so).
Postcode districts we cover here for sand mastic: RH2. Local streets include Smalls Hill Road and Deanoak Lane, all of which we cover. Other places close to Nalderswood include Norwood Hill (1 mile south-east), Shellwood Cross (1 mile west), Parkgate (2 miles south-west), Cudworth (2 miles south-west) and Charlwood (3 miles south). Larger places within reach include Guildford (15 miles west), Epsom (10 miles north), Horley (3 miles east), Redhill (4 miles north-east), Ewell (11 miles north) and Reigate (3 miles north-east).
Local landmarks in Nalderswood
We work in homes and buildings around Edolph's Copse. For rail, the closest station is Salfords station, roughly 3.4 miles east of the centre. Nearby you will also find Reigate Priory Museum (3.3 miles north-east) and East Surrey Hospital (3.7 miles north-east). Open spaces near Nalderswood include Reigate Heath and Colley Hill.
Why deal with it now?
New sash windows are a major, costly change, and in listed buildings it may need consent. Where the frames are in good order, new mastic seals the surround. Older cottages and farmhouses around Nalderswood can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why us?
- Tidy, careful work
- Anti-fungal silicone where joints get wet
- We’re fully insured
- We never seal over old sealant
Take a look at how sealant jobs are priced and our reviews.
What we do, step by step
The work is kept neat and contained to the area we’re working on. Expect the work to take a few hours for a single window, longer for several. For a village or hamlet like Nalderswood, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- For indoor joints, keep the area dry beforehand if you can
- Let us know about earlier repairs to the joints
Get a quote
To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Read more
What we cannot put right
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Planning or listed building consent (your local planning authority decides)
- Masonry that needs repairing
- Timber that has rotted
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
Where we work in Nalderswood
- Sash and case windows
- Brick reveals
- Tenement windows
- Stone surrounds
- Timber door frames
- Period & listed homes
DIY versus a professional finish
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Your questions about sand mastic in Nalderswood
Do you cover Nalderswood for sand mastic?
Yes. Our work covers London and the South East, and Nalderswood is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Do you cover smaller places like Nalderswood?
Yes. Nalderswood is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
Which products do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Do I need permission for sand mastic on a listed building?
Speak to your local planning authority before work starts. Like-for-like sand mastic is often the preferred finish, but they decide.
Can landlords and businesses book you?
Yes. We work for householders, landlords, letting agents, businesses and hotels in Nalderswood.
Should I try DIY first?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
What the job involves on each surface
Period and listed homes
A traditional finish suits a period property, and sand mastic is one of them.
Sash and case windows
On a sash window, the mastic joint shows on the outside so we finish it carefully.