Surrey · England

Sand mastic for sash & case windows in Frimley Green, Surrey

Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Frimley Green and across Surrey. ARBOMaster approved applicators, fully insured, with a one-year guarantee.

  • Cracked mastic round a front door frame
  • Patchy fillers round a sash window
  • Wind and rain getting in round a sash window

Trusted sand mastic in Frimley Green

Windows and doors in Frimley Green

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.

Rented homes near Farnborough North station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. For site and facilities teams at buildings such as Cross Farm Infant School, larger buildings have plenty of frames, and the mastic around each one ages.

Frimley Green is about 1 mile south of Frimley, in Surrey. From the centre of Frimley Green to the outskirts, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Our Surrey coverage runs to 395 places, Frimley Green among them. Our Reading page covers work nearby, about 15 miles away.

Postcode districts we cover here for sand mastic: GU16 and GU14. You’ll find streets such as Cross Lane, Sturt Road and Beech Road, and we cover them all. We also cover Frimley (1 mile north), Deepcut (1 mile north-east), Watchmoor (2 miles north-west), Camberley (2 miles north) and York Town (3 miles north-west). We also work in nearby towns such as Guildford (8 miles south-east), Woking (7 miles east), Farnham (7 miles south-west), Egham (12 miles north-east), Walton-on-Thames (15 miles east) and Staines-upon-Thames (13 miles north-east).

Near you in Frimley Green

In Frimley Green, that means homes and buildings near National Aerospace Library, Prince of Wales pub and Henry Tyndale School, among other places. You will also find Sixth Form College (1.1 miles west) and Frimley Lodge Park (under half a mile south-east). Frimley Green’s nearest station is Farnborough North station, roughly 0.5 miles west. Other landmarks nearby include Frimley Park Hospital (1.3 miles north) and Royal Army Dental Corps Historical Museum (2.4 miles south). Green spaces nearby include Danger Hill and Aunt's Pool.

Map of Frimley Green © OpenStreetMap contributors

Sand mastic in Frimley Green, done properly

If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Sand mastic is often favoured as a like-for-like material. We work on tenement windows, period & listed homes and timber door frames, and common reasons people get in touch are gaps where the frame meets the masonry and cement or filler used on old window joints that has cracked.

Houses in smaller places like Frimley Green can stand more in the open than those in a built-up town. The mastic around frames on those walls tends to age faster.

You get a 12-month guarantee, the same in Frimley Green as everywhere else we work.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Place
Frimley Green (GU16, GU14)
Region
Surrey
Cover
12 months on all our work
Price
A clear price before work begins
Call
0345 464 0079
Page updated
26 October 2026

Quotes for sand mastic in Frimley Green

Jobs vary more than people expect. What affects the quote:

  • The number of rooms or windows
  • How much old sealant there is and how hard it is to remove
  • The size of the job
  • When we can work, for business premises

Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will explain what it covers.

What to tell us for a quote

To make quoting easier, please include:

  • Any previous sealing or DIY work
  • Pictures of the joints, sent by email
  • Roughly how big the job is
  • If it’s domestic, commercial or a hotel

Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we will take it from there.

Frimley Green: your questions answered

Is Frimley Green in your area for sand mastic?

Yes. Our work covers London and the South East, and Frimley Green is part of that. Just call 0345 464 0079 or email us with a few details of the job.

Do you work for landlords with property near Farnborough North station?

Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before we start.

Will it make a mess?

No. The area is protected while we work and cleaned up afterwards.

Is consent needed for window work on a listed home?

It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish, but they decide.

How much does sand mastic cost in Frimley Green?

It depends on the job, so we quote each one individually. For a quick quote, ring 0345 464 0079 or email us and tell us what needs doing and where.

Can I do it myself?

That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.

Is it OK to seal over old sealant?

No. The old sealant always comes out first, so the new joint bonds to clean surfaces.

Do you take out the old sealant first?

Yes, every time. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.

The process

A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, carry out the job and tidy away. It generally takes a few hours per window, depending on the condition of the joints. For a job in Frimley Green, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.

  1. We look at the surrounds with you and agree the joints to renew.
  2. We remove the old, loose mastic.
  3. We pack any deep voids first.
  4. The sand mastic is mixed and pressed into the joint by hand.
  5. The surface is finished to suit the stone or brick.

How to prepare

  • Plan for the work area to be out of bounds to pets and children
  • Let us know about parking restrictions
  • Try not to wet indoor joints just before the visit

Ask for a quote

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, call 0345 464 0079 or send us an email.

Get a price

Advice

DIY sealant or a professional job?

If you’re set on DIY, put the effort into 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.

Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.

Why deal with it now?

Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. In an older home around Frimley Green, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.

No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.

Why Frimley Green clients choose us

  • Experience in homes, commercial sites and hotels
  • Any old sealant cut out fully, not covered over
  • A 12-month guarantee on all work
  • We are fully insured

Take a look at how sealant jobs are priced and our reviews.

Keeping the joints in good condition

Aftercare is simple:

  • Ask us before painting near the mastic
  • Renew mastic before redecorating the windows
  • Find out about consent before window work on a listed home
  • Make sure water runs off the sill

Make sure water drains away from the window surround. Constant wetting wears the mastic faster.

It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.

Common problems we fix in Frimley Green

Some old mastic was never deep enough. Mastic that’s too thin cracks and drops out so we make sure the new mastic is the right thickness.

Keep an eye out for any of the following:

  • Mastic that needs renewing before redecorating
  • Draughty sash windows at the surround
  • Silicone on a period window that looks wrong
  • Old cement repairs round a window that have failed

If you live in an older home near Church of St Andrew, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

What your quote should include

  • When the joint can take water or movement
  • How the joint is cleaned and prepared
  • Whether all the old sealant comes out first
  • Who turns up on the day

Choosing a sealant specialist

Landlord and commercial work in Frimley Green

We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.

Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job