Hampshire · England
Dogmersfield External Mastic
External mastic in Dogmersfield from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Damp patches traced to an open external joint
- Joints where the bead has come unstuck
- Gaps where render, brick and frames meet
What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- Structural movement, which needs a surveyor or engineer
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Cutting new joints into brickwork, which is building work rather than sealant work
If in doubt, call 0345 464 0079 or send us an email and we will say what we think.
What we seal
- Joints between brick and frames
- Copings & trims
- Brickwork movement joints
- Concrete & block
- Render & cladding joints
- Façade panels
External mastic in Dogmersfield
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it, and we don’t skip that step. If you’re dealing with joints with sealant missing in places and water getting into walls through failed joints, we can help, whatever the surface.
Older homes in small places like Dogmersfield may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water normally gets in.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Place
- Dogmersfield (RG27)
- Region
- Hampshire
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Keep high-pressure jets off the joints
- Ask before painting over external sealant
- Point out the joints to other trades
- Keep water from gutters off the wall
Only paint over the joint if we have confirmed the sealant can take paint. Many exterior sealants aren’t designed to be painted.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal before water has had years to get in.
External mastic in Dogmersfield: local notes
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Farnham Castle (about 4.7 miles south-east) nearby, there’s older building stock in the area around Dogmersfield as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Schools such as Dogmersfield Church of England Primary School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing. Homes close to All Saints' Church include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move.
Dogmersfield is about 2 miles west of Fleet, in Hampshire. If you need external mastic in Dogmersfield, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We cover Hampshire from our Crawley base. Our Hampshire coverage runs to 683 places, Dogmersfield among them. We also work in Reading, about 13 miles from Dogmersfield.
Jobs for external mastic in RG27 is quoted and booked the same way as anywhere else. Other places close to Dogmersfield include Crookham Village (1 mile east), Winchfield Hurst (1 mile north-west), Mill Lane (1 mile south), Fleet (2 miles east) and Bowling Alley (2 miles south). Within a short drive, we also cover Basingstoke (10 miles west), Farnborough (5 miles east), Aldershot (5 miles east), Alton (9 miles south-west), Yateley (5 miles north) and Tadley (13 miles north-west).
Around Dogmersfield
Typical jobs here are in homes near The Exchequer pub, Calthorpe Park and Calthorpe Park School. The closest station to Dogmersfield is Winchfield station, roughly 1.7 miles north-west of the centre. Well-known places in the area include Hart Shopping Centre (1.8 miles north-east) and Fleet Community Hospital (1.8 miles north-east). The countryside around Dogmersfield includes Tundry Hill and Fleet Pond Nature Reserve.
What happens if it’s left?
Sealing over the top of old mastic does not hold for long. The new layer can’t bond properly to old, weathered material, so the old joint is cut out fully first. Where a wall is exposed, as many are in small places like Dogmersfield, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Why book with us
- Sanitary silicone with an anti-fungal additive in wet areas
- White, clear, grey or coloured to suit, where the product allows
- Any old sealant cut out fully, not covered over
- Domestic, commercial and hotel work
Take a look at how sealant jobs are priced or customer reviews.
How the visit works
Every visit runs the same way: we check the joints, protect the area around them, do the work and clear up. Most jobs take a few hours for a handful of joints, longer for a whole elevation. In a small place like Dogmersfield, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Before we arrive
- Tell us about any water getting in
- Tell us about access, such as stairs, a lift or high-level joints
- Move anything stored near the joints
Get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, ring 0345 464 0079 or drop us an email.
Related advice
Landlords, agents and businesses in Dogmersfield
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
Hotels need rooms back in use, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
Towns and villages near Dogmersfield
Also in Dogmersfield
When to call us in Dogmersfield
Poor preparation causes many early failures: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The sealant never bonds properly.
The most common problems we see are:
- Cracked joints where brick meets render or frames
- Rigid filler in a joint that should flex
- Plants rooting in failed movement joints
- Old sealant gone brittle and cracked
Rented homes near Winchfield station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Before booking anyone
- Whether the sealant suits the joint
- How the colour is chosen
- Whether they’re fully insured
- Who turns up on the day
Dogmersfield: your questions answered
Can you help a landlord with a rental near Winchfield station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear price.
Do you cover smaller places like Dogmersfield?
Yes. Dogmersfield is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we have agreed the job, you do not need to watch us work.
How much does external mastic cost in Dogmersfield?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
How long does external mastic last?
There’s no fixed answer: joints on exposed walls or with a lot of movement age sooner. A yearly look will tell you when they need doing. Our work comes with a 12-month guarantee.
Should I point up the gap in my brickwork?
No. A mortar-filled joint can’t move, so the movement cracks the wall elsewhere. Use a flexible sealant with backing rod.