Hampshire · England
Colden Common Sand Mastic
Specialist sand mastic for Colden Common: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Tired mastic found when preparing windows for paint
- Silicone on a period window that looks wrong
- Mastic round period door frames that has failed
Frames and glazing around Colden Common
With historic houses such as South Stoneham House (about 4.8 miles south-west) nearby, there’s older building stock in the area around Colden Common as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you live in an older home near Church of the Holy Trinity, the joint between an old wall and a newer frame is normally the first place rain gets in. For site and facilities teams at buildings such as Colden Common Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Colden Common is about 2 miles north-east of Eastleigh, in Hampshire. For sand mastic in and around Colden Common, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We cover Hampshire from our Crawley base, Colden Common included. Colden Common is one of 683 places in Hampshire where we work. There’s also a page for Southampton, about 6 miles away.
Postcode districts we cover here for sand mastic: SO21 and SO50. Local streets include St Vigor Way, Ash Close and Birch Close, all of which we cover. Neighbouring places we cover for sand mastic include Brambridge (1 mile south-west), Nob's Crook (1 mile south-east), Lord's Wood (1 mile south-west), Highbridge (1 mile south-west) and Fisher's Pond (1 mile south-east). Within a short drive, we also cover Winchester (4 miles north), Gosport (15 miles south-east), Fareham (11 miles south-east), Horndean (15 miles south-east), Totton (10 miles south-west) and Chandler's Ford (3 miles west).
Near you in Colden Common
We work in homes and buildings around Thornden School. The nearest railway station is Shawford station, about 1.9 miles north. A little further out are Wolvesey Castle (4.4 miles north) and Eastleigh Museum (2.4 miles south-west). Green spaces nearby include Shawford Down and Twyford Down.
Sand mastic for homes and businesses in Colden Common
Across Colden Common, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. If you have mastic worn away on windows facing the weather and a silicone bead on a sash window that spoils the look, we can put it right.
In a smaller place like Colden Common, some walls face open ground and catch the full force of the weather, so exposed windows and doors face the weather head on. The mastic around frames on those walls tends to age faster.
You are covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Location
- Colden Common (SO21, SO50)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Also near Colden Common
More services for Colden Common
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Signs you need sand mastic in Colden Common
Previous repairs in cement or silicone often trap water or crack away. They don’t suit the joint, and they usually need raking out.
Keep an eye out for these signs:
- Old sand mastic that has cracked, crumbled or fallen out
- Gaps where the frame meets the masonry
- Wind and rain getting in round a sash window
- Modern sealant on a period surround
Letting a property close to Shawford station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
What your quote should include
- Who turns up on the day
- Whether all the old sealant comes out first
- When the joint can take water or movement
- Which colour the sealant will be
Honest limits
We won’t take on work that will not last, so here’s what sealant cannot put right:
- Masonry that needs repairing
- Decisions on consent for listed homes
- Broken panes
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Where we work in Colden Common
- Tenement windows
- Stone surrounds
- Period & listed homes
- Timber door frames
- Sash and case windows
- Brick reveals
How the visit works
There isn’t much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes a few hours per window, depending on the condition of the joints, including the tidy-up. A visit to Colden Common is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Before we arrive
- Mention any sign-in or site rules at work premises
- Mention any parking rules near the property
- Let us know if you’ve seen damp or leaks
How to get a quote
Every job is quoted individually, so start by telling us what you need. Simply phone 0345 464 0079 or send us an email and describe the job.
Advice
Different surfaces, different methods
Brick reveals
An open joint at a brick reveal lets weather in. Renewing the mastic closes it.
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
Colden Common: your questions answered
Can you do sand mastic in Colden Common?
Yes. We work across London and the South East, and Colden Common is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear price.
Do you work for landlords with property near Shawford station?
Yes. We work for letting agents and landlords as well as householders. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Do you guarantee sand mastic work?
There’s a 12-month guarantee on every job.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
How do I get a quote for sand mastic in Colden Common?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Which products do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.
What exactly is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder for the joint between timber frames and masonry.
Quotes for sand mastic in Colden Common
Call for a quick quote. The main things that affect it are:
- The type of sealant required
- The number and length of the joints
- The old material and how stubborn it is
- How many areas need sealing
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.
Asking for a quote
When you contact us, these details help:
- Whether it’s a home or a business
- What’s wrong with the joints now
- If someone has resealed it before
- Photos by email, if that’s easy
If you’re in Colden Common and need sand mastic, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Keep modern sealant off the mastic
- Find out about consent before window work on a listed home
- Avoid heavy scraping on the mastic joint
- Get any rot dealt with first
Do not touch or press the mastic while it hardens. It forms a skin fairly soon, but takes longer to harden fully.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.