Mastic sealant contractors in Corhampton
Our CSCS-carded applicators take on mastic sealing for building owners, managing agents and housing associations in Corhampton and the surrounding area. Send photographs or drawings for a fixed quote.
- Estate-wide sealant that is simply worn out
- Communal area joints that look neglected
- Water getting in round frames after rain
Mastic sealing in Corhampton
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Mastic sealing in Corhampton
Owners and agents normally inherit a building’s mastic rather than choose it and it slowly wears out: it sits round windows and doors, along external joints and through communal areas. Once it cracks, hardens or comes away, draughts and water find a way in along with complaints. The enquiries we see most involve occupiers reporting cold air round windows and water getting in round frames after rain, across balcony and threshold joints, communal kitchens and washrooms and communal entrances and stairwells. Facilities teams, main contractors and managing agents in Corhampton tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
Around smaller places like Corhampton, 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.
Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.
- Place
- Corhampton (SO32)
- Wider area
- Hampshire
- Cover
- 12 months on every job
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Updated
- 3 November 2026
General trades versus a specialist
For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.
What happens if it’s left?
Adding sealant to cyclical maintenance is an easy win. Waiting until leaks appear means working under pressure and less choice about when. For buildings around smaller places like Corhampton, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.
No two sites price the same: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
Why clients in Corhampton choose us
- CHAS accredited
- Our applicators hold CSCS cards
- Colours chosen to suit frames, cladding or finishes where possible
- One phone line for London, the South East and Scotland
Read our cost guide or how we’re accredited.
On site: what to expect
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. For work around Corhampton, we aim to finish in one visit, so photos and measurements up front really help. That way the right products come on the day.
- First comes a look at the joints and, for older buildings, the asbestos records.
- The products and programme are set out in a fixed quote.
- Failed mastic is removed completely.
- The joints are prepared and resealed with the right product.
- Buildings are completed in turn.
Getting the site ready
- Move anything stored against the joints
- Share your working hours and any access restrictions
- Tell us what induction or permit system the site runs
Getting a fixed quote
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, call 01277 525 020 or email the details over.
Related advice
Mastic sealing in Corhampton: the local picture
Corhampton is in the South East, one of the UK’s drier regions. Outside mastic still needs a dry joint and the right temperature, while the elevations that take the most sun tend to show hardened mastic first. At about 57 miles from central London, Corhampton is within reach of the capital. Managed blocks of flats are a big part of commuter-belt property.
Trustees of buildings like Corhampton Church can bring frame and external mastic into a planned maintenance list. Historic properties like Hinton Ampner House, 4.4 miles to the north of Corhampton, show the age of some local stock, where frame mastic must suit soft brick or stone.
Corhampton is about 7 miles north-west of Horndean, in Hampshire. Any commercial site in Corhampton is covered, whether it’s a single job or part of a planned programme. Corhampton is one of 723 places we cover in Hampshire. Southampton is covered too, around 12 miles from Corhampton.
Anyone looking for mastic sealing in SO32 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Streets here include De Port Heights, Warnford Road and Millside, and sites on any of them can send details for a fixed quote. Close to Corhampton, our area also takes in Exton (1 mile north), Meonstoke (1 mile south), Brockbridge (1 mile south), Droxford (1 mile south) and Soberton (2 miles south). Nearby towns on our patch include Winchester (10 miles north-west), Gosport (12 miles south), Havant (10 miles south-east), Eastleigh (9 miles west), Fareham (9 miles south) and Horndean (7 miles south-east).
Landmarks near Corhampton
Around Corhampton, our work takes us to commercial buildings near The Shoe Inn, among other places. Green spaces nearby include Beacon Hill and St Clair's Meadow.
Common problems we fix in Corhampton
Communal entrances and corridors see a lot of wear, with joints near the floor and around doors suffering most. Regular cleaning wears them further.
Site and facilities staff are often the first to spot these:
- Water getting in round frames after rain
- Brittle perimeter mastic across a building
- Mastic failing across several blocks on an estate
- Open joints in brickwork or panels
If your remit includes a building such as Meonstoke Church of England Infant School, frame and door mastic can be programmed for the holidays.
What to look for in a quote
- Who will actually carry out the work
- Their plan for phasing and protecting the area
- Is the sealant right for the movement and the substrate?
- Will failed sealant be removed rather than covered?
Corhampton: questions and answers
What documents will you need to give us for a job in Corhampton?
Whatever your site asks for, from RAMS to CSCS details, is confirmed when we quote. We are CHAS accredited and a Constructionline member, with £5m public liability insurance and CSCS-carded applicators.
Will you price a mastic programme across our Corhampton portfolio?
Yes. Portfolio-wide programmes are a regular request. Residents are given notice through you, and the work moves building by building.
Are you CHAS accredited?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member.
Will you just go over the old sealant?
No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
How long do sealant joints last?
There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Treat them as maintenance items and inspect them regularly.
What if the old mastic contains asbestos?
We don’t remove asbestos-containing materials. If old sealant is suspected, work stops until it’s tested in line with the dutyholder’s asbestos management.
When can the area be used after sealing?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.
Nearby places to Corhampton
What else we do in Corhampton
What we can’t put right
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Materials that need asbestos testing before work
- Glazing that needs replacing
- Leaks from above rather than through a joint
If in doubt, ring 01277 525 020 or send photos by email and we’ll say what we think before you book.
Joints and surfaces we work on
- Window and door perimeters on blocks
- Communal entrances and stairwells
- Balcony and threshold joints
- Communal kitchens and washrooms
- External wall and movement joints
- Shopfronts below residential blocks
Looking after the joints
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. We suggest:
- Look at the sunniest and most exposed elevations first
- Share the asbestos register when you send details
- Log resealing dates block by block
- Keep bins and bikes away from communal door frames
Protect entrance and corridor joints from knocks where possible. Knocks cause many early failures in communal areas.
Budgets are easier to plan when sealant is part of planned maintenance. A programme can start with the worst buildings and work down the list.