Commercial sealant contractors in Southwick, Hampshire
Planning work on a sealant joint in Southwick? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Messy, uneven beads from earlier work that let the building down
- Expansion joints with the sealant torn out
- Gaps behind commercial kitchen worktops and sinks
Need commercial sealant contractors in Southwick?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Commercial mastic work in Southwick
Sealant joints are easy to overlook until one lets water in, and on a working site that normally surfaces as a leak, a stain or a complaint from occupiers. We’re commercial sealant applicators for FMs, managing agents, landlords and contractors looking after property in Southwick. We find out why the sealant joints failed, take them out and seal again using a sealant that suits the joint. We work on kitchen worktops and splashbacks, external facade joints and washrooms and tea points, and the usual reasons a site gets in touch are external beads that have gone brittle and cracked and frame sealant that has cracked, shrunk or pulled away. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Southwick is the same: the right product in a properly prepared joint.
On a typical commercial building in Southwick, the joints that fail first are the hardest-worked ones: south-facing perimeters, entrance thresholds and busy washrooms.
Business units in the countryside around places like Southwick are often converted barns, stables or farmyards. Old masonry beside new aluminium, timber and plasterboard gives plenty of joints between materials that move differently, and a sealant colour that suits the building’s character is often part of the brief.
A 12-month guarantee applies to all our work. Should something we installed fail, give us a call on 01277 525 020 or use the quote form and we’ll come back to it.
- Location
- Southwick (PO17)
- Region
- Hampshire
- Cover
- 12 months on our workmanship
- Price
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Site staff or a sealant specialist?
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.
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.
Aftercare for building managers
After handover, a little attention goes a long way:
- Keep a record of which joints were resealed and when
- Put external and wet-area joints on a regular inspection round
- Keep washroom and kitchen extraction working
- Ask fit-out and M&E contractors to report any sealant they disturb
Brief your cleaning team on the joints that have been resealed. Scourers, blades and harsh products shorten a bead’s life.
Tenants and staff spot black or split sealant quickly, and in a hotel, office or shop it makes the whole space look neglected. Replacing it on a planned cycle keeps complaints down.
Frontages, fit-outs and joints in Southwick
With the shore within about 2 miles, Southwick counts as a coastal location. Shopfronts, frames and external joints on commercial buildings there take wind-driven rain and, closer to the shore, salt in the air. A matched colour is only half the brief on an exposed frontage. Southwick has at least three named business or industrial parks inside a 3-mile radius. Sites like these see regular refits, with shopfronts, offices and staff areas to seal.
Sites a few miles apart, such as Castle Trading Estate and Parklands Business Park, can share one programme and one point of contact. Premises within reach of Portchester station (to the south of Southwick) often have busy frontages where joints are seen by everyone passing. Units at places like Broadcut Retail Park (to the west of Southwick) are refitted as brands change, and the joints have to suit each new scheme.
Southwick is about 3 miles west of Purbrook, in Hampshire. Looking for commercial sealant contractors in Southwick? We can help. We work across 723 places in Hampshire.
We take on sealant joints across the PO17 postcode area, for business premises of every kind. Among the streets we cover are High Street, North Road West and Castle Road, and sites on any of them can send details for a fixed quote. We also cover Boarhunt (1 mile west), North Boarhunt (2 miles north-west), Portchester (2 miles south), Hundred Acres (3 miles north-west) and North Fareham (3 miles west). Bigger towns within reach include Gosport (5 miles south), Havant (5 miles east), Eastleigh (12 miles north-west), Fareham (4 miles west), Horndean (5 miles north-east) and Chandler's Ford (14 miles north-west).
Around Southwick
Around Southwick, our work takes us to commercial buildings near Red Lion Inn, among other places. The nearest railway station is Portchester station, roughly 1.9 miles south of the centre. Nearby you’ll also find Portchester Castle (2.6 miles south) and Fareham Shopping Centre (3.2 miles south-west). Green spaces nearby include Portsdown Hill and St Clair's Meadow.
What sets the cost
Quotes vary with the job. Expect it to depend on:
- Which sealant the job calls for
- Phasing around occupants
- How much existing material needs removing
- Joint width, depth and condition
The price depends on how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a quote when you’re ready.
What to include in your enquiry
A good diagnosis starts with the right details. Let us know:
- Whether the building will be occupied during the work
- Any specification or named product
- Whether an asbestos survey exists
- Access details, including height
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to ring 01277 525 020 or email a schedule or drawings with what you know.
Owners, agents and contractors
We work for building owners and managing agents on sealant work across single buildings or whole portfolios. Several sites can go on one quote, so there’s one set of paperwork to deal with.
Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Sites in Southwick can sit alongside others in a wider programme across Hampshire.
Questions about Southwick
Is Castle Trading Estate, near Southwick, within your area?
Yes. Estates, retail parks and business parks around Southwick, Castle Trading Estate among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.
Does the sea air around Southwick change the choice of sealant?
It can. Coastal exposure works external joints harder than inland weather. That puts more weight on product choice, primers where the manufacturer specifies them, and correct joint sizing.
Which sealant will you use?
The specification comes first, if there is one. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.
How long before the joints can be used?
That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, so we will confirm the curing time on the day.
When is resealing likely to be due?
It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.
How long does a job like this take?
That varies with the scale of the job, though a typical visit normally takes as long as the agreed scope needs, from a single visit to a programme spread over several weeks. For bigger or phased jobs, we will set out a timescale with the quote.
Are you CHAS accredited?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member.
Towns and villages near Southwick
Other services in Southwick
When something else is needed
A few problems need another trade or a different fix, and we say so rather than covering them up:
- Old mastic that tests positive for asbestos
- Cracking that needs a structural engineer to look at it
- Leaking roofs, gutters or flat-roof membranes (those need a roofer)
Not sure which it is? You can ring 01277 525 020 or email a schedule or drawings and we will tell you honestly before you book.
Surfaces we seal
- External facade joints
- Kitchen worktops and splashbacks
- Movement joints in walls and floors
- Washrooms and tea points
- Window and door perimeters
- Floor and threshold joints
From enquiry to sign-off
A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. The work itself typically takes anything from part of a day on a short run of joints to several weeks on a large phased package, and we clear our waste as we work. Jobs in and around smaller places like Southwick are usually planned as a single visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.
- First, details come to us: photos, drawings or a schedule of the areas.
- Next comes a diagnosis and a fixed quote.
- Site hours, access windows and the order of areas are agreed before we start.
- We strip the failed bead and prepare both faces of the joint.
- The depth is set, primer is used where the maker calls for it, and the fresh bead is applied and tooled.
- Finished joints are checked with you and handed over with our 12-month guarantee.
Before we start on site
- Let building users know which areas are affected
- Make sure the joints can be reached
- Send any specification or drawings in advance
Request a quote
For a fixed quote, call 01277 525 020 or use the quote form, telling us the site location and the nature of the job. Our quote form is another easy route.