Surrey · England
Sand mastic for sash & case windows in Guildford, Surrey
Sand mastic for Guildford and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Weathered mastic on the most exposed windows
- Mastic dropping out of the joint
- Cement or filler used on old window joints that has cracked
Sand mastic for homes and businesses in Guildford
For a listed home or one in a conservation area, ask your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. We’re often asked to deal with old cement repairs round a window that have failed and mastic that needs renewing before redecorating, across stone surrounds, timber door frames and period & listed homes.
With a large rental market, Guildford has plenty of windows that landlords need to keep weathertight. Gaps around a frame let in draughts and water, and tenants notice.
Each job carries a 12-month guarantee, large or small.
Your questions about sand mastic in Guildford
Do you work for landlords with property near London Road (Guildford) station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Is there a guarantee on sand mastic in Guildford?
Every job comes with our one-year guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Can I choose the sealant colour?
Most of the time, yes. We will explain which colours are available.
Are you insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Can sand mastic be painted?
Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we’ll talk you through it.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Can you seal over the old sealant?
No, and we never do. It may look fine at first, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Can old silicone round a sash window be swapped for sand mastic?
Generally, yes. Once the silicone is out and the joint prepared we point it with sand mastic.
Work for landlords, hotels and businesses
If you manage several properties in or around Guildford, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
We also work for property managers and facilities teams in Guildford and across Surrey. We can quote a run of properties together, and we are fully insured for the work.
Guildford homes and the weather
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. Historic houses like Guildford Castle (about 0.9 miles south) are a reminder that the area around Guildford has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
Letting a property close to London Road (Guildford) station? Then any sash windows need sound mastic to keep draughts and rain out. Managing a site like Sandfield Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
Guildford is about 27 miles south-west of London, in Surrey. For sand mastic in and around Guildford, please ring 0345 464 0079 or drop us an email for a quick quote. We are based in Crawley and cover Surrey. Our area takes in 395 places across Surrey, large and small. Our Crawley page covers work nearby.
We work across the GU1, GU2, GU4 and GU3 postcode area for sand mastic and the streets around it. Streets in the area include Church Road, Market Street and High Street, all of which we cover. Main roads around Guildford include the A3 and A25. Other places close to Guildford include Bellfields (1 mile north), Abbotswood (1 mile south-east), Stoughton (1 mile north-west), Westborough (1 mile west) and Burpham (1 mile north-east). Larger places within reach include Woking (5 miles north), Camberley (9 miles north-west), Epsom (15 miles north-east), Farnham (10 miles west), Egham (13 miles north) and Walton-on-Thames (12 miles north-east). Being one of Surrey’s larger places, Guildford has homes, rented property and businesses of every kind.
What’s near Guildford
Typical jobs here are in homes near The King's Head pub, Guildford High School and Surrey Maths School. For rail, the closest station is London Road (Guildford) station, about 0.6 miles south-east. Well-known places in the area include Guildford Castle (0.9 miles south) and Guildford House (0.8 miles south). Not far away are Silent Pool and Pewley Hill.
Signs you need sand mastic in Guildford
Shallow joints are a common cause. A thin layer doesn’t hold well so we make sure the new mastic is the right thickness.
It’s worth asking for a quote if you see:
- Tired mastic found when preparing windows for paint
- Gaps between timber frames and stone or brick
- Wind and rain getting in round a sash window
- Old cement repairs round a window that have failed
If you live in an older home near Church of St John the Evangelist, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Before booking anyone
- Whether VAT is included
- Whether they seal over old material or remove it
- What happens if the job turns out different
- Are they insured?
How it works
On the day, we look over the joints with you first. Surfaces next to the work are protected before any work starts. Most jobs take a few hours for a single window, longer for several. In Guildford, we work in everything from flats and family homes to offices and hotels. Whichever it is, tell us how to get in, where to park and where the work is.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Before we arrive
- Clear the area around the work
- Mention any leaks or damp you’ve noticed
- Plan for the work area to be out of bounds to pets and children
Getting a quote
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Advice
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Avoid patching sand mastic with silicone
- Have rotten timber repaired before new mastic goes in
- Check the mastic when you check the paintwork
- Sort the mastic before the decorators arrive
Don’t touch or press the mastic while it hardens. It skins over quickly but needs longer to fully harden.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
Quotes for sand mastic in Guildford
For a quick quote, just ask. The main things that affect it are:
- When we can work, for business premises
- How many areas need sealing
- The product the joint needs
- The number and length of the joints
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.
Asking for a quote
There’s no need for technical detail. Just tell us:
- The problem you’ve noticed
- The address or postcode of the job
- The rough size of the job
- Pictures of the joints, sent by email
Getting a quote is simple: tell us what needs doing and where and its rough size. Photos by email help us understand the job, and we’ll take it from there.
Surface by surface
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. Sand mastic seals the joint round it.
Tenement and terrace windows
Upper-floor windows need access planning. Tell us the height and we will confirm what’s needed.
Places near Guildford
More services for Guildford
Should I try it myself first?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
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.