Mastic sealant contractors in Swanwick
Mastic sealing for building owners, managing agents and housing associations in Swanwick and across Hampshire. CHAS accredited and fully insured, with a 12-month guarantee.
- Failed external movement joints
- Leaks at window and door perimeters
- Window mastic that has split and shrunk
Mastic sealing for Swanwick sites
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Mastic sealing for commercial buildings in Swanwick
Treatment starts with a proper look: what has failed, what caused it and whether new sealant will actually solve it. Old mastic is removed entirely, the faces prepared, primer used where the maker specifies it and new sealant tooled in, with backing rod setting the depth where it’s needed. Most enquiries involve movement joints with sealant missing and water getting in round frames after rain, across communal entrances and stairwells, communal kitchens and washrooms and external wall and movement joints. Looking for mastic applicators who cover Swanwick? We’ve been sealing commercial buildings since 2005.
Around smaller places like Swanwick, older walls fitted with newer windows are a familiar sight. Perimeter mastic there has to grip an uneven face and suit the building’s character.
We stand by our work with a 12-month guarantee. That covers our preparation and application, and if something we did falls short, we return to it.
- Where
- Swanwick (SO31, PO15)
- Wider area
- Hampshire
- Guarantee
- 12 months on every job
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Block-wide mastic in Swanwick
Swanwick is within about 3 miles of the coast. For owners and agents with buildings near the sea, exposed elevations are where frame mastic fails first; plan inspections around that. Rainfall across the South East, Swanwick included, is lower than in many parts of the UK. Even so, frame mastic only goes on in dry, workable conditions, and elevations facing the sun and the prevailing weather are typically where frame mastic ages first.
Trustees of buildings like Church of St Paul can bring frame and external mastic into a planned maintenance list. If your remit includes a building such as Sarisbury Church of England Junior School, frame and door mastic can be programmed for the holidays.
Swanwick is about 2 miles south of Hedge End, in Hampshire. Our applicators travel to Swanwick for work on mastic joints. Swanwick is one of 723 places in Hampshire on our list.
We take on mastic joints across the SO31 and PO15 postcode area, whatever the building. We cover commercial and managed buildings on Walpole Lane, Ashby Mews and Swanwick Lane. If your building is just outside Swanwick, we cover Lower Swanwick (1 mile north-west), Sarisbury (1 mile south-east), Park Gate (1 mile south-east), Burridge (1 mile north-east) and Sarisbury Green (1 mile south). Nearby towns on our patch include Winchester (12 miles north), Gosport (8 miles south-east), Havant (13 miles east), Eastleigh (6 miles north-west), Fareham (4 miles south-east) and Horndean (12 miles east).
Local landmarks in Swanwick
Around Swanwick, our work takes us to commercial buildings near The Old Ship Inn and Brookfield Community School and Language College and the streets around them. Swanwick’s nearest station is Bursledon station, about 0.8 miles west. Well-known places in the area include Bursledon Brickworks Industrial Museum (under half a mile north) and St Andrew's Castle (2.4 miles south-west). For a walk, there’s Swanwick Lakes.
Diagnose, treat, sign off
The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. For work around Swanwick, we aim to finish in one visit, so photographs and measurements up front really help. Then the right materials arrive with us.
- We inspect each building and record the joints that have failed.
- You get a fixed quote, per block or for the whole programme.
- Dates and areas are agreed so occupiers can be told.
- Failed sealant is removed and the faces prepared.
- New sealant goes in with backing rod and primer where needed.
- Each building is checked and signed off with the 12-month guarantee.
Preparing the site
- Point out any areas we must not close
- Send your site hours and access windows
- Have the specification and drawings to hand
Getting a fixed quote
Send us photos, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we’ll arrange a site visit.
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Building owners, agents and FMs in Swanwick
Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.
We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Swanwick. Several sites can go on one quote, so there’s one set of paperwork to deal with.
Common problems we fix in Swanwick
Communal entrances and corridors see a lot of wear, with joints near the floor and around doors suffering most. Cleaning products add to the wear.
Any of the following is a good reason to get the joints checked over:
- The same joint failures repeated across a portfolio
- Water getting in round frames after rain
- Old repairs sealed over failed mastic
- Occupiers reporting cold air round windows
If you look after a block within reach of Bursledon station, 0.8 miles west of Swanwick, frame and balcony mastic can be renewed on one programme.
Comparing quotes
- Their plan for phasing and protecting the area
- Their approach to joint depth and backing
- Which product they’ll use, and why it suits the joint
- Whether their applicators hold CSCS cards
After the work
After handover, these steps help:
- Avoid piecemeal callouts where you can
- Have the asbestos survey to hand for older buildings
- Protect low-level joints in entrances
- Ask residents or tenants to report leaks and draughts early
Our workmanship is covered for 12 months, so report any failure in that time. Beyond that, routine checks spot the next round of repairs.
Leaks at window perimeters spoil finishes and can affect frames. Early resealing is far simpler than repairs inside.
Site staff or a sealant specialist?
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Towns and villages near Swanwick
Other services in Swanwick
Cost factors for mastic joints
There’s no standard rate for sealant work, since sites vary so much. What we take into account:
- Specialist products, such as fire-rated or hygienic sealants
- Phasing around occupants
- Joint width, depth and condition
- How much existing material needs removing
Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.
What we need to price the job
The more we know, the firmer the quote. When you get in touch, include:
- The site address and postcode
- Access details, including height
- Any dates the work must fit around
- Rough lengths or quantities, or drawings if you have them
To get a fixed quote, speak to us on 01277 525 020 or email us with the site address and an outline of the work. You can also send details through our quote form.
FAQs: Swanwick
Is Swanwick off your patch?
Not at all. Swanwick is within our area. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.
Does a coastal location like Swanwick affect which sealant is used?
It can. Coastal exposure works external joints harder than inland weather. We check the specified product suits the exposure and pay close attention to preparation.
Do you need to see the site first?
It depends on the job. Simple work can often be priced from photographs, while larger or less clear jobs get a site visit first.
Can you work to our specification?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.
How soon can the area be used again?
The product and site conditions decide that. Some products skin over quickly but need longer to cure fully, so we’ll confirm the curing time on the day.
Will you just go over the old sealant?
No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
Can people stay in the building while you reseal?
We plan around people living or working in the building. Dates and areas are agreed with you so residents or tenants can be told, and entrances stay in use.