South East England and London
Sand Mastic in Southampton
Wherever you are in Southampton, our applicators can help with sand mastic. Clear quotes up front, and a one-year guarantee.
Sand mastic across Southampton
Traditional burnt sand mastic around sash and case windows and doors in stone and brick. Pick your town below to see the details for your area, or get in touch for a quick quote.
Larger towns
More services in Southampton
- Fire-rated sealant
- Bathroom & kitchen resealing
- Remedial sealant & repairs
- Window & door mastic
- External & façade joints
- Regrouting
- New-build mastic & snagging
- Gutter, fascia & soffit sealing
- Commercial & hotel sealant
- Floor & skirting joints
- Glazing & conservatory sealant
Postcodes in Southampton
Sand mastic across Southampton: what to expect
For a listed home or one in a conservation area, ask your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. Common call-outs are for open joints round the window box and old cement repairs round a window that have failed, on brick reveals, timber door frames and period & listed homes.
We keep the work tidy and contained to the area we’re working on, so you can get on with your day. Expect the work to take a few hours for a single window, longer for several, and we explain the cure time before we leave.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
What affects the price in Southampton
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
Why customers in Southampton choose us
- Full insurance on every job
- Every job guaranteed for a year
- Approved under the ARBOMaster scheme
- 180+ five-star Google reviews
Getting a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work.
What’s near Southampton
In Southampton, that means homes and buildings near Saint Mary's, St Mary's Independent School and Rockstone Place Park, among other places. Also close by are Bevois Town Primary School (under half a mile west), The Hobbit pub (less than half a mile west) and St Anne's Catholic School (0.6 miles south-west). Southampton has its own railway station: St Denys station. Other landmarks nearby include Marlands Shopping Centre (1 mile south-west) and R J Mitchell Museum (0.9 miles south-west). Open spaces near Southampton include Netley Common.
Windows and doors across Southampton
From Shirley, Regents Park and Townhill Park to its smaller places, Southampton has windows and doors of every age and material. The mastic around all of them ages, and it’s usually the first thing to let the weather in.
The South East is one of the drier parts of the UK, but outdoor sealant still needs a dry day and clean surfaces, so outside work in Southampton is planned around the forecast. Along the coast in Southampton, holiday lets and guest houses can have bathrooms in near-constant use, so their sealant and grout wear faster than most, and the weather is hard on the outside too.
Southampton: For landlords with property near St Denys station, any sash windows need sound mastic to keep draughts and rain out. If you look after a building such as Bevois Town Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Looking after it afterwards
To keep the joints looking good and working properly:
- Make sure water runs off the sill
- Check the mastic when you check the paintwork
- Get any rot dealt with first
- Do not run silicone over sand mastic
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
Surface by surface
Period and listed homes
A traditional finish suits a period property, and sand mastic is one of them.
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We work on single windows or whole elevations.
Leave it or put it right?
Draughts round a sash window are not always the sashes. Open mastic joints round the box can let air in, and renewing the mastic closes them.
Questions to ask before booking
- Which colour the sealant will be
- Whether all the old sealant comes out first
- Is VAT in the price?
- How hidden problems are handled
Honest limits
We will always be straight with you, so here’s what new sealant will not do:
- Cracked or broken glass
- Crumbling stone or brickwork round the window
- Decayed frames that need repair
What affects the cost of sand mastic
The quote reflects the job in front of us. We look at:
- How many rooms, windows or areas are involved
- The number and length of the joints
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
The cost depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before work begins, so you know where you stand.
What to tell us for a quote
To help us quote quickly, let us know:
- A few photos by email, if you can
- If it’s domestic, commercial or a hotel
- Any access issues, like height or stairs
- Any previous sealing or DIY work
Asking for a quote is easy: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand, and we will take it from there.
Questions from Southampton
What information do you need?
Let us know what needs doing and where, with photos by email if possible. If we need more, we’ll ask.
Should I use sand mastic or silicone?
We will talk it through with you. Period homes often look best with sand mastic, and modern sealants suit newer frames.
Is there any odour?
Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.
Are you insured?
Yes. We are fully insured.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We’ll tell you what we’re using and why.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Southampton, along with the rest of our area.
Can I paint the new mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.