Hampshire · England
Upper Burgate Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Upper Burgate, backed by a 12-month guarantee. Call for a quick quote.
- Draughts and rain around sash boxes
- Old sand mastic that has cracked, crumbled or fallen out
- Window mastic to renew ahead of painting
How the job changes by surface
Tenement and terrace windows
Windows above ground floor need the right access. Let us know the floor and we will confirm access.
Stone surrounds
Sand mastic sits naturally against stone. The finish blends with the masonry.
Sand mastic in Upper Burgate
Sand mastic skins over fairly quickly, but it takes longer to harden fully. Traditionally, sand mastic is left unpainted and we’ll advise if you are redecorating. We are often asked to deal with cracked mastic round a front door frame and mastic dropping out of the joint, on tenement windows, sash and case windows and stone surrounds.
Mastic can only go onto a dry, clean joint, so window work in Upper Burgate is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
We stand behind the work with a 12-month guarantee.
- Place
- Upper Burgate (SP6)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026

Should I try it myself 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.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Quotes for sand mastic in Upper Burgate
Jobs vary more than people expect. The main factors:
- The type of sealant required
- Any working-time requirements on site
- The old material and how stubborn it is
- Whether there’s mould to deal with
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or drop us an email and we’ll talk you through it.
Helping us quote
There’s no need for technical detail. It helps if you can tell us:
- How we’d reach the joints
- How many joints, rooms or windows are involved
- Pictures of the joints, sent by email
- Where the property is
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand.
Upper Burgate: your questions answered
Is Upper Burgate in your area for sand mastic?
Yes, Upper Burgate is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing.
Is sand mastic in Upper Burgate guaranteed?
Every job comes with our 12-month guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Is it possible to paint over sand mastic?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
Can I add another job to the visit?
Yes. Just list everything you need.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
I rent my home. Can I book you?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Is there any odour?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
Is sand mastic better than silicone for my windows?
That depends on your windows. On many period windows, sand mastic looks right and suits the building, while modern frames normally get a flexible sealant.
When to call us in Upper Burgate
Shallow joints are a common cause. Mastic that’s too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
The most common problems we see are:
- Gaps between timber frames and stone or brick
- Mastic dropping out of the joint
- Modern sealant on a period surround
- Old cement repairs round a window that have failed
Managing a site like The Burgate School and Sixth Form? Then larger buildings have plenty of frames, and the mastic around each one ages.
Comparing quotes
- Whether the sealant suits the joint
- What happens if the job turns out different
- What guarantee comes with the work
- Is the old sealant removed completely?
Upper Burgate homes and the weather
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Breamore House (about 1.6 miles north) are a reminder that the area around Upper Burgate has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Homes close to Woodgreen Methodist Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Upper Burgate is in Hampshire. Wherever you are in the SP6 postcode area, we can carry out sand mastic at your property. Upper Burgate is one of 683 places in Hampshire we cover for sand mastic. We also work in Southampton, around 17 miles away.
Postcode districts we cover here for sand mastic: SP6. That includes homes and businesses on Salisbury Road and Fryern Court Road and the roads around them. If you are just outside Upper Burgate, we cover Lower Burgate (1 mile south), Breamore (1 mile north), Tinkers Cross (1 mile south-west), Fordingbridge (1 mile south-west) and Upper Street (1 mile north). Further out, we also cover Totton (12 miles east), Romsey (13 miles east), New Milton (14 miles south), Ringwood (7 miles south), Barton on Sea (15 miles south) and Marchwood (15 miles east).
What’s near Upper Burgate
In Upper Burgate, that means homes and buildings near Bat and Ball pub and Fordingbridge Infant School. Well-known places in the area include Fordingbridge Museum (1.3 miles south) and Godshill Castle Hill (0.8 miles east).
What we do, step by step
On the day, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before work begins. Most jobs take a few hours per window, depending on the condition of the joints. Somewhere as small as Upper Burgate, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we look at the surrounds with you and agree what needs doing.
- The loose and crumbling 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.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- Let us know about stairs, lifts or work at height
- Mention any sign-in or site rules at work premises
- Try not to wet indoor joints just before the visit
Get a quote
Every job is quoted individually. Just call 0345 464 0079 or drop us an email with the details, and photos are welcome.
Read more
Keeping the joints in good condition
So the new joints stay in good condition:
- Ask a joiner to look at soft timber first
- Ask us before painting near the mastic
- Sort the mastic before the decorators arrive
- Take care around the mastic when scraping paint
When preparing windows for paint, take care around the mastic. 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.
Why it’s worth doing now in Upper Burgate
New mastic over crumbling mastic will not hold. Raking out and preparing the joint gives it a sound base so the new work lasts. Older cottages and farmhouses around Upper Burgate can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
Why choose Mr Mastic in Upper Burgate
- Old sealant always removed completely
- Approved under the ARBOMaster scheme
- Trusted Arbo and Everbuild sealants
- Experience in homes, commercial sites and hotels
See our cost guide and customer reviews.
