West Sussex · England
Sand mastic for sash & case windows in Gay Street, West Sussex
Window and door surrounds in Gay Street need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Modern sealant on a period surround
- Cracked mastic round a front door frame
- Window mastic to renew ahead of painting
Windows and doors in Gay Street
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Old Place Manor (about 2.4 miles south-west) are a reminder that the area around Gay Street 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’s traditional sand mastic.
If you let a flat or house near Pulborough station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Old Place Manor, about 2.4 miles south-west, is one of the historic houses in the wider area around Gay Street.
Gay Street is about 9 miles south-west of Horsham, in West Sussex. Every kind of property in Gay Street is covered for sand mastic. The work is guaranteed for a year. Our West Sussex coverage runs to 371 places, Gay Street among them. We also work in Crawley, around 15 miles away.
Jobs for sand mastic in RH20 is quoted and booked the same way as anywhere else. If you’re just outside Gay Street, we cover North Heath (1 mile north-west), Nutbourne (1 mile south), Broomershill (1 mile south-west), West Chiltington (2 miles south) and Codmore Hill (2 miles west). Further out, we also cover Crawley (15 miles north-east), Horsham (9 miles north-east), Worthing (11 miles south), Burgess Hill (15 miles east), Littlehampton (12 miles south) and Shoreham-by-Sea (13 miles south-east).
Near you in Gay Street
The closest station to Gay Street is Pulborough station, about 2.7 miles south-west. Green spaces nearby include The Mens.
About our sand mastic in Gay Street
Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditionally, sand mastic is left unpainted, so ask us before you decorate. If you have patchy fillers round a sash window and tired mastic found when preparing windows for paint, we can put it right, on timber door frames, sash and case windows and tenement windows alike.
Homes in small places like Gay Street often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
You are covered for a year from the day we finish. If anything is not right with it, ring 0345 464 0079 or drop us an email.
- Location
- Gay Street (RH20)
- Region
- West Sussex
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Also near Gay Street
Other services in Gay Street
What affects the quote in Gay Street
The quote reflects the job in front of us. We take into account:
- The size of the job
- Whether old sealant or filler has to be cut out
- Working hours on commercial sites
- How many rooms, windows or areas are involved
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
When you contact us, these details help:
- The type of property
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
- Pictures of the joints, sent by email
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, ring 0345 464 0079 or send us an email.
Questions from Gay Street
Can you help a landlord with a rental near Pulborough station?
Yes, we work for landlords and letting agents. 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 any work starts.
Is Gay Street in your area for sand mastic?
Yes. We work across London and the South East, and Gay Street is part of that. You can call 0345 464 0079 or email us and let us know what needs doing.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we are using and why.
Can new sealant go over the old?
No, it won’t last. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Do you offer different sealant colours?
In most cases you can choose. We’ll tell you which colours the right product comes in and agree one before work begins.
Should I use sand mastic or silicone?
We’ll help you decide. Period homes often look best with sand mastic, and modern sealants suit newer frames.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply phone 0345 464 0079 or email us.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
What we do, step by step
Before we leave, we go over the finished joints with you. The work normally takes anything from a few hours to a full day, depending on how many windows, depending on the size of the job. In a small place like Gay Street, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- 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
- For business premises, tell us about site rules or sign-in
- Let us know if you’ve seen damp or leaks
- Move anything stored near the joints
Ask for a quote
If you’re in Gay Street and need sand mastic, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Advice
How to look after the new joints
No joint lasts for ever, but care makes a real difference. Our tips:
- Get any rot dealt with first
- Go gently near the mastic when preparing windows
- Keep modern sealant off the mastic
- Inspect the joints round the windows every year or so
Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
Why act early in Gay Street
New mastic over crumbling mastic won’t hold. We remove the loose material first so the new work lasts. Around Gay Street, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first.
What you get with us
- Any old sealant cut out fully, not covered over
- Approved under the ARBOMaster scheme
- Homes, businesses and hotels
- 12-month guarantee on every job
Take a look at what affects the cost and our reviews.
What the job involves on each surface
Timber door frames
Door frames get knocked and soaked and the mastic can crack early. We rake it out and renew it.
Tenement and terrace windows
Upper-floor windows need access planning. Let us know the floor and we’ll confirm access.
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
For landlords and businesses
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
Landlords and agents in Gay Street can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.