Mastic contractors in Hilsea
Mastic packages for new-build and refurbishment projects in Hilsea. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Oversized or tapered gaps around new frames
- Mastic snags holding up handover
- Window and door perimeters that won’t pass inspection
Need construction mastic in Hilsea?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Construction mastic in Hilsea
Most of the packages we price run well beyond frames: external door and window perimeters, internal decorators’ caulk where specified, sanitary joints in bathrooms and washrooms, kitchen worktops and splashbacks, and snagging before handover. One contractor for all of it keeps the responsibility in one place and gives you a consistent finish across the job. Site teams most often ask us about inconsistent sealant finishes from plot to plot and sanitary sealant damaged by following trades, across brick and block movement joints, floor and skirting junctions and sanitary and kitchen joints. Whether you call it commercial sealant work, mastic application or joint sealing, in Hilsea it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Around places like Hilsea, a lot of construction is the conversion of older buildings, which leaves joints between old walls and new frames that need a sealant able to take the movement.
Our workmanship is guaranteed for 12 months, wherever the site is. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Where
- Hilsea (PO2, PO3, PO6)
- Wider area
- Portsmouth
- Guarantee
- 12 months on every job
- Price
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Honest limits
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- Oversized gaps that need packing or adjustment by others
- Defective windows, doors or glazing units (the supplier or installer’s job)
- Designing joint widths or choosing the specification (that sits with the designer)
Not sure which it is? You can phone 01277 525 020 or email the details over and we’ll tell you honestly.
Where we work in Hilsea
- Brick and block movement joints
- Internal decorators’ caulk
- Sanitary and kitchen joints
- Window and door perimeters
- Floor and skirting junctions
- Cladding and panel joints
Other services in Hilsea
Owners, agents and contractors
Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.
Hotels, schools, healthcare sites, offices and retail units book us directly too. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.
Doing it in-house
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
After the work
A few simple habits keep the new joints working:
- Ask for joint and product checks before the package is urgent
- Brief the final clean team to avoid blades near sealant
- Plan external elevations with the weather in mind
- Note which sealant went where at handover
Our 12-month guarantee covers the workmanship from sign-off. Damage by others isn’t a workmanship fault which is why protection after sealing matters.
Oversized gaps are a problem better caught early. Filling a wide gap with sealant alone sets up a failure, so the installer needs to correct it first. We raise them during our first walk of the area.
Questions we’re asked in Hilsea
Do you take on work at healthcare sites like Queen Alexandra Hospital?
Yes. Healthcare sites are among the places we work. Each area is agreed with the ward or department and the estates team in advance.
Could you schedule work at a campus like University of Portsmouth for the vacation?
Yes. Education sites normally want the work in vacations or in phases during term, and we plan to suit. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
How do I request a quote?
It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photographs and a postcode.
Can you fit around our programme?
We work to your programme. Tell us the sequence and we will plan applicators around it.
How soon can the area be used again?
Curing time varies by product, and we confirm it on the day, and flag anything to keep off until it has cured.
Do you seal on top of existing sealant?
No. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.
Can you fit around our working hours?
Mention the site’s hours and access windows in your enquiry, and we will plan around them. Our office runs Monday to Friday, 8am until 5pm.
How the quote is worked out
We price every job individually. The things that drive the figure:
- Distance, for remote addresses
- The size and state of each joint
- The product specified
- Phasing around occupants
Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.
Sending details for a quote
Good information means a firmer quote. When you get in touch, include:
- The asbestos register, for older buildings
- Any dates the work must fit around
- What the building is and how it’s used
- Photos of the joints, close up and from further back
Send us photos, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.
How a job runs
We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. With the paperwork done, the joints are worked through in the order agreed with your site contact, and each area is checked before we leave it. For a job in Hilsea, the main thing is a clear picture of the work, so send photos of each area. You will then get a fixed price for the work.
- First we take quantities off the drawings and read through the specification.
- We return a fixed quote that ties the mastic package to your programme.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
- We seal each plot or floor as it’s released to us.
- Every joint is prepared, set to depth and sealed with the specified product.
- We close out snagging and hand over with a 12-month guarantee.
What we need from you
- Send your site hours and access windows
- Confirm the product named in the specification
- For older buildings, check the asbestos register before work
Getting a fixed quote
Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, ring 01277 525 020 or email a schedule or drawings.
Related advice
Construction mastic around Hilsea: how the place shapes the job
The sea is no more than about 1 mile from Hilsea. Coastal exposure means perimeter and cladding joints work harder than on an inland job, so joint design, primers and product choice deserve extra care. Hilsea sits in one of the drier corners of the country, the South East. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so we time external mastic for dry faces and agree it with the site team.
New wings at hospitals like Queen Alexandra Hospital (to the north of Hilsea) bring long runs of window and panel joints to seal. Work at a hotel such as Village Hotel, 0.8 miles north of Hilsea, tends to be programmed around bookings, mastic included. Further education sites such as Portsmouth College, 1.9 miles south-east of Hilsea, are extended and refurbished from time to time, with mastic often programmed into the summer break.
Hilsea is about 2 miles north of Portsmouth, in Portsmouth. Businesses, contractors and managing agents in Hilsea use us for work on mastic packages, as part of our coverage of Portsmouth. Across Portsmouth, 19 places are covered, Hilsea among them.
If you need construction mastic in PO2, PO3 and PO6, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on Vita Road, Conan Road and Arras Road or close by, send details and we’ll quote for mastic packages. Sites close to Hilsea are covered too, including Cosham (1 mile north), North End (1 mile south-west), Tipner (1 mile south-west), Wymering (1 mile north) and Rudmore (1 mile south-west). Further afield, our area takes in Southsea (3 miles south), Portsea (3 miles south-west) and Portsmouth Point (3 miles south-west).
Near you in Hilsea
In Hilsea, that means premises near Alexandra Park, Trafalgar School and Coach and Horses pub. For rail, the closest station is Hilsea station, about 0.5 miles east of the centre. Other landmarks nearby include World War I Remembrance Centre (0.8 miles east) and Tricorn Centre (2.1 miles south-west). Green spaces nearby include Milton Locks and Portsdown Hill.