Construction and new-build mastic in Gosport, Hampshire
Planning work on a mastic package in Gosport? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Frame gaps too wide for sealant alone
- Frame perimeters left unsealed or poorly sealed
- Sanitary sealant damaged by following trades
Construction mastic near Gosport
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
When it isn’t the sealant
Before quoting, we check that sealant is the right answer. It won’t put right:
- Deciding which fire-stopping product a penetration needs
- Joint design decisions that belong to the architect or engineer
- Joints damaged after sign-off by following trades
If you’re not sure, just call the office on 01277 525 020 or email drawings and photos and we will give you a straight answer before you book.
What we seal
- Sanitary and kitchen joints
- Cladding and panel joints
- Floor and skirting junctions
- Internal decorators’ caulk
- Brick and block movement joints
- Window and door perimeters
Construction mastic for commercial buildings in Gosport
Mastic tends to be one of the final packages before handover, so it lands at exactly the point the programme is tightest. We work as a mastic subcontractor to main contractors and developers with projects in Gosport, following the trades through the building as rooms and elevations become ready. We work on internal decorators’ caulk, window and door perimeters and cladding and panel joints, and the failures we’re asked to look at most are new external sealant already peeling away and failed sealant in an existing building being refurbished. For commercial sealant work in Gosport, you deal with one contact from quote to sign-off, whether it’s one building or several.
Construction in and around smaller places such as Gosport is often barn conversions, small groups of houses or extensions to halls and schools. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.
A 12-month guarantee applies to all our work in Hampshire. If an installation problem shows up, phone 01277 525 020 or use the quote form and we will arrange a return visit.
- Where
- Gosport (SO51)
- Region
- Hampshire
- Cover
- 12 months on every job
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Our process
Site rules come first: sign-in, induction and whatever permit system the building uses. With the paperwork done, we take the joints in the sequence agreed with you. If others near Gosport need work, visits can be combined. You’ll have a fixed quote before work starts.
- First we look at the scope on site or from drawings.
- A fixed quote sets out scope, products and phasing.
- Paperwork is agreed and applicators are inducted on site.
- Sealing follows the programme as areas are released.
- Problems we find, such as oversized gaps, are raised right away.
- The package is closed out, snags cleared and backed by our 12-month guarantee.
What we need from you
- Confirm the product named in the specification
- Share the asbestos register for older buildings
- Tell us what induction or permit system the site runs
Ask for a quote
For a fixed quote, call 01277 525 020 or email a schedule or drawings with the site address and an outline of the work. You can also send details through our quote form.
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New build and refits around Gosport
Rainfall across the South East, Gosport included, is lower than in many parts of the UK. Even so, frost and condensation on steel and glass are common on winter mornings, so the external programme keeps a little slack. At about 67 miles from central London, Gosport is within reach of the capital. Towns within reach of London tend to keep building, from flats to offices and schools, so mastic packages have to keep pace with busy programmes.
Work at a hotel such as The Potters Heron Hotel, 0.9 miles east of Gosport, tends to be programmed around bookings, mastic included. On a healthcare site such as Romsey Hospital, 2.2 miles west of Gosport, new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully. When a school such as Ampfield Church of England Primary School is extended or refurbished, the mastic package is often squeezed into the holidays.
Gosport is about 2 miles east of Romsey, in Hampshire. Businesses, contractors and managing agents in Gosport use us for work on mastic packages, as part of our coverage of Hampshire. 723 places across Hampshire fall within our area, including Gosport. Our Southampton page has more on work in that area.
Commercial sites across SO51 are covered. Just outside Gosport, we also work in Ampfield (1 mile north-east), Crampmoor (1 mile west), Knapp (1 mile north-east), Broadgate (1 mile east) and Lower Slackstead (2 miles north). Nearby towns on our patch include Winchester (6 miles north-east), Eastleigh (5 miles south-east), Fareham (15 miles south-east), Andover (14 miles north), Totton (7 miles south-west) and Hedge End (8 miles south-east).
Landmarks near Gosport
Locally, jobs take us to sites close to White Horse Public House and The Mountbatten School, among other places. Gosport’s nearest station is Chandlers Ford station, roughly 2.6 miles south-east of the centre. Well-known places in the area include King Johns House (2.9 miles west) and Romsey Community Hospital (2.2 miles west). Open spaces near Gosport include Emer Bog and Baddesley Common.
Site staff or a sealant specialist?
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong normally costs more in the end than doing them right.
Quoting for work in Gosport
These are the things that shape the price:
- Access and working height
- How much there is to seal
- Travel to remote or island sites
- Phasing around occupants
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a quote and we will explain how it’s made up.
Details that help us quote
There’s no need for a formal survey. These details are enough to start:
- The type of building and who uses it
- Rough lengths or quantities, or drawings if you have them
- Your programme or deadline
- Photos of the joints, close up and from further back
A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or give us a call on 01277 525 020 or send details through our quote form if you’d rather talk the job through.
Leave it or put it right?
Leaving mastic to whichever trade is fitting the element can look cheaper on paper. The result tends to be uneven finishes and arguments about who should seal what. One mastic subcontractor for the lot keeps it simple and a consistent finish. One visit to deal with every failing joint makes more sense than several trips to a place like Gosport, rather than one at a time. Send photos of each area and we’ll quote for the lot.
Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.
Why us?
- Specification-led, product-correct work
- Colour options checked against the specified product
- Clear, fixed quotes
- Colours chosen to suit frames, cladding or finishes where possible
See how commercial sealant jobs are priced or our accreditations.
Aftercare for building managers
For the best life from the joints:
- Ask installers to correct oversized gaps first
- Note which sealant went where at handover
- Share drawings and the specification as soon as possible
- Release areas for mastic once other trades have finished in them
Once an area is sealed, protect it from following trades. New beads should be left to cure before cleaning or decorating nearby; we confirm the time for each product.
Leaving the mastic snag list to the end squeezes everyone. A planned close-out through each area as it completes keeps the list short.
Common questions from Gosport clients
Can you take on a job at a hospital such as Romsey Hospital?
Yes. We work in healthcare settings as well as offices and schools. Work is phased so departments keep running, under the site’s own rules.
Is Sleepy Hollow Business Park, near Gosport, within your area?
Yes. Our area takes in Gosport and its surroundings, with estates and business parks such as Sleepy Hollow Business Park included. To start, just give us a call on 01277 525 020 or send details through our quote form with the unit, the joints involved and your access times.
How do you work with the site programme?
The programme sets the job. Share the release dates and we will match our work to them so sealing follows the trades.
Can staff carry on working while you are here?
Yes, with some planning. Tell us your site hours and access windows and we’ll plan around them.
How do we ask for a quote?
It works in four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photos and a postcode.
How long before the joints can be used?
The product and site conditions decide that. Some take light use quickly, others need longer to cure, and we confirm it before leaving site.
Are you insured?
Yes. We are fully insured, and the certificate can go with your quote.