Hampshire · England
Sand Mastic in Blashford
Window and door surrounds in Blashford need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Crumbling sand mastic round a window
- Mastic round period door frames that has failed
- Mastic worn away on windows facing the weather
About our sand mastic in Blashford
A silicone bead around a sash window can look out of place and isn’t always the right material. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. We work on stone surrounds, sash and case windows and timber door frames, and people most often call us about cracked mastic round a front door frame and mastic that needs renewing before redecorating.
Somewhere as small as Blashford, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Blashford (BH24)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Why act early in Blashford
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. Around Blashford, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
What you pay reflects the work, not guesswork. That’s why we ask a few questions first.
What you get with us
- Anti-fungal silicone where joints get wet
- An ARBOMaster approved applicator
- Quality sealants from Arbo and Everbuild
- Any old sealant cut out fully, not covered over
Read our cost guide and what customers say.
What sand mastic looks like in Blashford
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. With historic houses such as Avon Tyrrell House (about 4.7 miles south-east) nearby, there’s older building stock in the area around Blashford as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Managing a site like Poulner Junior School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Blashford is in Hampshire. If you need sand mastic in Blashford, it’s easy to get a quote: please ring 0345 464 0079 or send us an email. We cover Hampshire from our Crawley base, Blashford included. Our Hampshire coverage runs to 683 places, and Blashford is one of them. For nearby work, see our Southampton page, about 17 miles away.
Our applicators cover all of BH24 for sand mastic and the streets around it. Local streets include Snails Lane, Ivy Lane and Woolmer Lane, and we cover them all. If you’re just outside Blashford, we cover Ellingham (1 mile north-west), Rockford (1 mile north-east), Poulner (1 mile south-east), Highwood (1 mile east) and Ringwood (1 mile south). Further out, we also cover Totton (13 miles east), Lymington (13 miles south-east), New Milton (9 miles south-east), Barton on Sea (10 miles south-east), Marchwood (15 miles east) and Ashley (9 miles south-east).
Landmarks near Blashford
Locally, jobs take us to homes and businesses close to Alice Lisle Inn and Ringwood School Academy. Nearby you’ll also find St Leonard's Hospital (4.5 miles south-west). The countryside around Blashford includes Blashford Lakes and Linbrook Lake.
What happens on the day
There is not 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. In a small place like Blashford, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Let us know about earlier repairs to the joints
- Keep children and pets away from the work area
Get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email photos if that’s easy.
Read more
What affects the cost of sand mastic
We quote each job individually. These are the things that affect it:
- Any working-time requirements on site
- Whether old sealant or filler has to be cut out
- The amount of work
- The product the joint needs
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will explain what it covers.
What we need to know
To help us quote quickly, please include:
- What the problem is, such as mould, gaps, leaks or cracking
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
- A few photos by email, if you can
Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we’ll come back to you with a quote.
When something else is needed
New sealant can’t fix everything, and we’ll tell you before work begins. Sealant will not put right:
- Decisions on consent for listed homes
- Sash cords, weights and draught-proofing of the sashes
- Crumbling stone or brickwork round the window
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly.
Where we work in Blashford
- Timber door frames
- Period & listed homes
- Brick reveals
- Tenement windows
- Stone surrounds
- Sash and case windows
Signs you need sand mastic in Blashford
Age is the main cause. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
The most common problems we see are:
- Draughts and rain around sash boxes
- Gaps between timber frames and stone or brick
- A silicone bead on a sash window that spoils the look
- Failed mastic on an exposed elevation
In the older streets around Church of St Mary and All Saints, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What to look for in a quote
- Whether they’re fully insured
- How much experience the applicator has
- Whether VAT is included
- What preparation is included
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Plan mastic work ahead of painting
- Inspect the joints round the windows every year or so
- Get any rot dealt with first
- Keep modern sealant off the mastic
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber, which can lead to rot.
Your questions about sand mastic in Blashford
Will you come out to Blashford?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Is there a guarantee on sand mastic in Blashford?
All our work, in Blashford and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Do you offer different sealant colours?
Usually, yes. Sealants come in white, clear, grey and other colours for many products, and we will agree it with you first.
How much does sand mastic cost in Blashford?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.
Can I add another job to the visit?
Yes. Just list everything you need and we’ll quote it together.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Will there be a smell?
It depends on the product. Some products have a noticeable smell, others very little.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Other services in Blashford
Different surfaces, different methods
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It gives a traditional finish.
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We can do one window or several.