Hampshire · England
Stroud Sand Mastic
Window and door surrounds in Stroud need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Weathered mastic on the most exposed windows
- A silicone bead on a sash window that spoils the look
- Draughty sash windows at the surround
What affects the quote in Stroud
There’s no set price list. What we look at:
- When we can work, for business premises
- Mould in or behind the old joints
- The type of sealant required
- How much there is to do
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, phone 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- Any access issues, like height or stairs
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
- The address or postcode of the job
We quote each job on its own, so start by telling us what you need. Simply phone 0345 464 0079 or send us an email and describe the job and send photos if you have them.
Sand mastic for homes and businesses in Stroud
Silicone on a period window often looks wrong and does not suit the building. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. We work on sash and case windows, timber door frames and brick reveals, and people most often call us about crumbling sand mastic round a window and cracked mastic round a front door frame.
Homes in small places like Stroud often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or send us an email.

- Place
- Stroud (GU32)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Different surfaces, different methods
Timber door frames
Sand mastic is used round timber door frames too. The method is the same as for windows.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair, so check who is responsible first.
Also near Stroud
Also in Stroud
Do you need sand mastic in Stroud?
Timber swells and shrinks with the weather. That movement opens up the mastic joint little by little.
The most common problems we see are:
- Wind and rain getting in round a sash window
- Modern sealant on a period surround
- Patchy fillers round a sash window
- Tired mastic found when preparing windows for paint
Rented homes near Petersfield station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
Comparing quotes
- What preparation is included
- What guarantee comes with the work
- Who does the work, and how experienced they are
- Whether you can choose the colour
Frames and glazing around Stroud
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you look after a building such as Langrish Primary School, its window and door frames need their mastic kept sound, just like a home’s. Homes close to Stroud Mission Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Stroud is about 2 miles west of Petersfield, in Hampshire. For sand mastic in and around Stroud, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We’re based in Crawley and cover Hampshire. We cover 683 towns and villages across Hampshire. Portsmouth is on our list too, about 15 miles from Stroud.
Jobs for sand mastic in GU32 works the same way as everywhere else we cover. Streets in the area include Winchester Road, Stroudfields and Ramsdean Road. We also cover the places around Stroud: Langrish (1 mile west), Petersfield (2 miles east), Froxfield Green (2 miles north-west), Steep (2 miles north-east) and High Cross (2 miles north). Within a short drive, we also cover Winchester (15 miles west), Havant (10 miles south), Fareham (15 miles south-west), Horndean (7 miles south), Alton (10 miles north) and Waterlooville (9 miles south).
What’s near Stroud
Around Stroud, our work takes us to homes and buildings near The Petersfield School, Morton House School and Seven Stars pub, among other places. Stroud’s nearest station is Petersfield station, roughly 1.3 miles east of the centre. Nearby you will also find Petersfield Community Hospital (1.3 miles east) and Clanfield Earthwork (4.2 miles south). Open spaces near Stroud include Liss Riverside Railway Walk South and Pidham Hill.
Why deal with it now?
Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. Where the frames are in good order, new mastic seals the surround. Around Stroud, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Why book with us
- 20+ years of sealant experience
- 12-month guarantee on every job
- Trusted Arbo and Everbuild sealants
- We never seal over old sealant
See what affects the cost and what customers say.
FAQs for Stroud
Do you cover smaller places like Stroud?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Petersfield station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
Is it messy?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Should I use sand mastic or silicone?
Sand mastic usually suits period timber windows best. On modern frames, we’d normally use a flexible sealant, and we’ll explain why.
Can you seal over the old sealant?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.
Is the work guaranteed?
There’s a 12-month guarantee on every job, sand mastic included.
DIY sealant or a professional job?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Looking after it afterwards
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Plan mastic work ahead of painting
- Go gently near the mastic when preparing windows
- Ask the planning authority about consent for listed or conservation-area homes
- Leave the new mastic unpainted
Avoid painting over the new mastic, which is the traditional advice. Ask us before any decorating around it.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber, which can lead to rot.
What we do, step by step
On the day, we look over the joints with you first. We protect the surfaces around the joints before any work begins. Most jobs take a few hours per window, depending on the condition of the joints. Somewhere like Stroud needs a little journey planning: 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 look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Mention any parking rules near the property
- For indoor joints, keep the area dry beforehand if you can
- Mention any tricky access
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, phone 0345 464 0079 or drop us an email.
