Hampshire · England
Commercial sealant contractors in PO12
Commercial sealant, construction mastic and joint sealing across PO12, covering Gosport, Forton and Elson, with a fixed quote before we start.
Need sealant work in PO12?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Areas within PO12
What we do in PO12
- Mastic sealing for building owners and managing agents
- Commercial washroom and wet-area sealing
- Commercial sealant contractors
- Facade and window perimeter sealing
- Expansion and movement joint sealing
- Coloured and colour-matched sealant
- Construction and new-build mastic
- Fire-rated sealing and fire stopping
- Industrial and floor joint sealing
- All services
Tell us what needs doing and your postcode and we’ll come back with a price: call 01277 525 020 or send photos by email.
Nearby postcode districts
Elsewhere in Hampshire
Every town in Hampshire
Every area we cover
Our commercial sealant contractors service in PO12
Most commercial buildings carry hundreds of metres of sealant that nobody thinks about until it fails, and in an occupied building failure normally announces itself as a stained ceiling or an unhappy tenant. Mastic Doctor works as a commercial sealant contractor for facilities managers, managing agents and main contractors looking after property in PO12. We find out why the sealant joints failed, take them out and seal again using a sealant that suits the joint. We work on movement joints in walls and floors, external facade joints and kitchen worktops and splashbacks, and the failures we are asked to look at most are frame sealant that has cracked, shrunk or pulled away and hardened, chalky sealant on south-facing or exposed elevations.
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. Then we strip out anything that has failed, prepare every joint and seal it.
- Site photos, drawings or a visit tell us what’s there and how it has failed.
- You get a fixed quote covering removal, preparation and the new sealant.
- Sequence, access and working times are settled before the first joint is touched.
- Each joint is stripped, cleaned back to sound faces and primed where the maker specifies.
- Backing goes in, the new sealant is laid and tooled, and the area is left neat.
- We hand back each area with its cure time and our 12-month guarantee.
How we quote
The specified product makes a difference, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.
Why choose Mastic Doctor
- Commercial sealant work since 2005
- Joints cleaned back to sound surfaces
- Public liability insurance in place
- 12-month guarantee on workmanship
Get a fixed quote
Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to give us a call on 01277 525 020 or send photos by email with what you know.
What’s near Gosport
Recent enquiries here include premises near Brune Park Community School, Brockhurst Primary School and St Vincent College. Also close by are St Faith's Church (0.5 miles south-east) and Queen's Head pub (less than half a mile north-west). Gosport’s nearest station is Portsmouth Harbour station, roughly 2 miles east of the centre. Well-known places in the area include Search (1.3 miles south-east) and Gosport War Memorial Hospital (0.8 miles south). The countryside around Gosport includes Portsdown Hill and West of the River Alver.
Shops, offices and hotels in PO12
Across PO12, from Gosport, Forton and Portsea to the smaller places between, commercial buildings run from high-street shops and offices to hotels, schools and business parks. Because we cover all of it, multi-site occupiers can bring every building under one quote.
The South East is one of the UK’s drier regions, but external sealing in PO12 still needs a dry joint and the right temperature, and damp or frosty mornings can hold it up. Parts of PO12 lie on or near the coast, where wind-driven rain and, closer to the shore, salt air are harder on external joints. Product choice and joint preparation matter more there.
Gosport: For a retailer at a site such as Brockhurst Gate Retail Park (0.9 miles north of Gosport), the joints clients see are as much part of the fit-out as the shelving. Premises within reach of Portsmouth Harbour station, 2 miles east of Gosport, often have busy frontages where joints are seen by everyone passing.
Surface by surface
Commercial kitchens and tea points
Gaps and ragged beads trap dirt that cleaning can’t reach, and cleanability is part of what an inspector looks at. We seal to a neat, cleanable finish and work around service times you agree with us.
Facade and cladding joints
On a facade, a failed joint is often only visible close up. Close-up photographs or a site visit tell us what’s needed, with colours confirmed for the product chosen.
Maintenance after handover
Every sealant joint needs some looking after, and how long they last depends on how they’re treated. Our advice:
- On pre-2000 buildings, share the asbestos information before work starts
- Keep abrasive pads and scrapers off resealed joints
- Have extract fans checked so wet areas dry out
- Check joints after other trades have worked nearby
We stand behind the workmanship with a 12-month guarantee. File the handover note with the building records, and tell us if a joint we sealed gives trouble within that time.
In kitchens and washrooms, a failed joint is a cleaning problem as well as a leak risk. Environmental health officers look at how cleanable surfaces are, which makes sound joints worth keeping on top of.
Quoting for work in PO12
The price varies from site to site. Expect it to depend on:
- Working within restricted access windows
- Site requirements such as inductions and permits
- How much there is to seal
- Which sealant the job calls for
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.
What to include in your enquiry
There’s no need for a formal survey. These details are enough to start:
- Whether an asbestos survey exists
- The site address and postcode
- Rough lengths or quantities, or drawings if you have them
- The type of building and who uses it
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To ask for one, call 01277 525 020 or email the details over.
Why deal with it now?
It can be tempting to hold sealant work back until the next refurbishment. For internal joints that are only cosmetic, that can make sense, but a joint letting water in now keeps doing damage until the refurb arrives. We can seal the urgent joints now and leave the rest for the programme.
Comparing quotes
- The terms of the workmanship guarantee
- Whether old or failed sealant will be cut out, not overlaid
- Health and safety accreditation such as CHAS
- Which product they’ll use, and why it suits the joint
Owners, agents and contractors
CHAS accredited and a Constructionline member, we’re straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
PO12: questions and answers
Is it OK to apply fresh sealant over existing beads?
Every failed bead is cut out completely. Laying new silicone on old gives it nothing to grip; the faces are then cleaned and prepared.
Who decides which product is used?
If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Is PO12 in your area?
Yes. We cover PO12, and the simplest way to start is to call the office on 01277 525 020 or send details through our quote form.
Which site documents can you send us?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We are CHAS accredited and a Constructionline member, with five million pounds of public liability insurance.
How do we get a quote?
Price depends on joint lengths and widths, how much removal is involved, the product, access and phasing. For a fixed quote, send details through our quote form.
Are you CHAS accredited?
Yes. We are CHAS accredited and a Constructionline member.
Do you take on multi-site sealant work?
Yes. We regularly take on multi-site work and planned maintenance programmes, quoted per building or as a package.