Mastic sealant contractors in Hilsea
Need mastic sealing in Hilsea? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- No planned programme for sealant
- Draughts at frames across a block
- Damaged joints in communal entrances and corridors
Mastic sealing near Hilsea
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
About our mastic sealing in Hilsea
There isn’t one mastic for every joint on a building. Low-modulus neutral-cure silicone suits many window perimeters and external movement joints, while hybrid polymer sealants grip many materials and are often paintable, and colours are confirmed for whichever product is used. If you have leaks at window and door perimeters and worn sealant at communal door frames, we can help, on communal kitchens and washrooms, balcony and threshold joints and external wall and movement joints alike. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Hilsea, preparation and product choice get the time they need.
Places the size of Hilsea usually have some housing association stock, small blocks and mixed-use buildings. The mastic around their frames and external joints ages like anywhere else.
Every job we finish is backed by a 12-month workmanship guarantee, in Hilsea as everywhere else we work. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Where
- Hilsea (PO2, PO3, PO6)
- Region
- Portsmouth
- Guarantee
- 12 months on every job
- Quote
- Quoted before any work starts
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Surface by surface
Commercial and mixed-use buildings
Landlords with commercial portfolios have shopfronts, office entrances and external joints to look after. We work across portfolios on a planned basis.
External movement joints
The joint width has to suit the movement and the sealant’s capability with the width-to-depth ratio set as the manufacturer advises.
What we’re called out for in Hilsea
Communal entrances and corridors see a lot of wear, with joints near the floor and around doors suffering most. Regular cleaning wears them further.
Most enquiries start with something like this:
- Patchy repairs in mismatched sealant
- Draught complaints from residents or tenants
- Mastic failing across several blocks on an estate
- Worn sealant at communal door frames
For a school such as Gatcombe Park Primary School, perimeter mastic on windows and doors is a holiday job.
What to look for in a quote
- Will RAMS and insurance details be available?
- Will CSCS-carded applicators be on site?
- Health and safety accreditation such as CHAS
- What the guarantee covers, and for how long
What else we do in Hilsea
Owners, agents and contractors
Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.
CHAS accredited and a Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.
Hilsea: questions and answers
Will you take on work at estates like Limberline Industrial Estate, close to Hilsea?
Yes, sites like Limberline Industrial Estate are within our area, along with the rest of Hilsea. To start, just call the office on 01277 525 020 or email us with the unit, the joints involved and your access times.
Is Hilsea off your patch?
Not at all: smaller places are covered as well as towns. London and every South East county are within our area. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.
Do you do block-wide mastic programmes?
Yes. We survey and price each building, then work through them in order starting wherever is most urgent.
How long does a typical visit take?
It depends on the scope, though a typical visit usually takes one or more days per building, depending on the joint lengths and the access. For bigger or phased jobs, we’ll set out a timescale with the quote.
Do you work with property factors and landlords?
Yes. Managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios are our main clients for this work and work can be quoted per building or as a whole.
Do you work to architects’ specifications?
Yes. We follow the specification, along with the manufacturer’s installation guidance.
What paperwork can you provide?
We are CHAS accredited, a Constructionline member and carry public liability insurance. For specific documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
Honest limits
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- Frames that are rotten, warped or broken
- Roof leaks, gutters or failed flashings that aren’t sealant joints
- Misted or failed double-glazed units
Not sure which it is? You can phone 01277 525 020 or use the quote form and we’ll tell you honestly.
Surfaces we seal
- Window and door perimeters on blocks
- Communal entrances and stairwells
- External wall and movement joints
- Communal kitchens and washrooms
- Balcony and threshold joints
- Shopfronts below residential blocks
On site: what to expect
On arrival, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before any cutting starts, with the work itself typically taking anything from a day to a few weeks, depending on the number of buildings and joints. What matters most for a job in Hilsea is a clear list of what needs doing. You’ll then get a fixed price for the work.
- We inspect the joints, building by building, and record what has failed and why.
- You get a fixed quote, priced per building where that helps your budgeting.
- The programme is fixed with you, including dates you can pass on to residents or tenants.
- Old sealant is stripped and each face prepared back to firm material.
- Backing rod and primer go in where the joint and the product need them, then new sealant is applied and tooled.
- Finished joints are looked over and the 12-month guarantee confirmed.
What we need from you
- Point out parking and an unloading spot
- Flag any permit to work we’ll need
- Send any specification or drawings in advance
Getting a fixed quote
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to speak to us on 01277 525 020 or send photos by email with what you know.
Advice
Frames, entrances and external joints in Hilsea
The sea is no more than about 1 mile from Hilsea. For owners and agents with buildings near the sea, exposed elevations are where frame mastic fails first. Hilsea is about 63 miles from central London. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres.
Student blocks close to universities like University of Portsmouth, 2.5 miles south of Hilsea, are easiest to work on between tenancies. For agents with blocks near Hilsea station, 0.5 miles east of Hilsea, a block-wide mastic programme deals with frames, balconies and entrances in one go.
Hilsea is about 2 miles north of Portsmouth, in Portsmouth. We cover Hilsea, with the same fixed quotes and 12-month guarantee as everywhere else. Across Portsmouth, 19 places are covered, Hilsea among them.
Postcode districts covered here: PO2, PO3 and PO6 for mastic joints. Among the streets we cover are Vita Road, Conan Road and Arras Road, and sites on any of them can send details for a fixed quote. Nearby places we also cover include 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). Bigger towns within reach include Southsea (3 miles south), Portsea (3 miles south-west) and Portsmouth Point (3 miles south-west).
Near you in Hilsea
We work on buildings around Alexandra Park, Trafalgar School and Coach and Horses pub, among other places. The closest station to Hilsea is Hilsea station, about 0.5 miles east of the centre. Well-known places in the area 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.
When to bring in a specialist
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.