Mastic sealant contractors in Landport
Commercial sealant work in Landport for contractors, FMs and building owners: mastic sealing for building owners, managing agents and housing associations, quoted at a fixed price.
- Complaints coming in block by block
- Damaged joints in communal entrances and corridors
- The same joint failures repeated across a portfolio
Need mastic sealing in Landport?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Why deal with it now?
Looking at mastic during planned maintenance costs little. Leaving it until there’s a leak turns it into reactive work with less control over timing. Over time, UV, weather and movement wear any sealant out. Renewing it in good time keeps the building weathertight.
The price depends on the quantity of joints, how much old material needs removing and how the joints are reached. Call for a fixed quote when you are ready.
Why clients in Landport choose us
- CHAS accredited
- Old sealant cut out, never sealed over
- One number for every site we cover
- CSCS-carded applicators
Take a look at what affects the cost or our accreditations.
About our mastic sealing in Landport
Blocks are lived in, so access and disruption have to be thought through. The sequence, the areas and the dates are settled with you, giving you what you need to notify residents. Entrances and stairwells are kept in use throughout. If you have no planned programme for sealant and movement joints with sealant missing, we can help, whatever the surface. A single leaking joint is often how a building in Landport first comes to us: we look at the rest while we are there and tell you what we find.
Owners with buildings around smaller places like Landport often group mastic work so one visit covers several properties. One quote can cover a whole list of addresses.
Work we carry out comes with a 12-month guarantee. If an installation problem shows up, speak to us on 01277 525 020 or send details through our quote form and we will arrange a return visit.
- Place
- Landport (PO1, PO2, PO5)
- Region
- Portsmouth
- Guarantee
- 12 months on every job
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Common questions from Landport clients
Do you work for managing agents with blocks near Portsmouth & Southsea station?
Yes. Blocks of any size are within what we do. Give us the building’s details and say how residents are notified, and we’ll quote and plan to suit.
Is Landport too small for you to travel to?
No. Small places get the same service as large ones. London and every South East county are within our area. Good photos up front let us bring everything on the first visit.
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 do you reach windows on upper floors?
We talk through access for each building when we quote. Tell us the building height and any access already in place, and we will tell you how we’d approach it.
Do you guarantee the mastic work?
A 12-month guarantee covers our work. It covers our workmanship, not later building movement, damage or frame failures.
Can weather delay the job?
Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.
Which sealant will you use?
Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Honest limits
A proper diagnosis includes knowing what sealant can’t do. We will tell you if the real problem is one of these:
- Roof leaks, gutters or failed flashings that aren’t sealant joints
- Asbestos-containing sealant, which we don’t remove
- Glazing that needs replacing
Not sure which it is? You can phone 01277 525 020 or email a schedule or drawings and we’ll tell you honestly before you book.
Surfaces we seal
- Communal kitchens and washrooms
- Balcony and threshold joints
- Shopfronts below residential blocks
- External wall and movement joints
- Communal entrances and stairwells
- Window and door perimeters on blocks
Should maintenance staff do it?
Redoing a failed joint normally costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Work for main contractors and building owners
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Landport can form part of a wider programme.
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.
Looking after the joints
Problems stay small when the joints are checked regularly. Specifically:
- Plan resealing building by building rather than complaint by complaint
- Make mastic part of routine maintenance checks
- Ask residents or tenants to report leaks and draughts early
- List the paperwork your organisation requires when you send details
Add mastic joints to your cyclical inspections. Watch for splits, open gaps, hard or chalky surfaces and mastic pulling away and record where they are.
Budgets are easier to plan when sealant is part of planned maintenance. We can quote buildings in priority order so spending is spread.
Frames, entrances and external joints in Landport
With the shore within about 1 mile, Landport counts as a coastal location. Sea-facing elevations take driven rain and salt, and their mastic shows it before the sheltered sides do; plan inspections around that. Rainfall across the South East, Landport included, is lower than in many parts of the UK. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first.
Older community buildings, Church of All Saints among them, often have frames of mixed ages whose mastic varies. For a school such as Ark Dickens Primary Academy, perimeter mastic on windows and doors is a holiday job. If you look after a block within reach of Portsmouth & Southsea station (under half a mile south-west of Landport), frame and balcony mastic can be renewed on one programme.
Landport is about 1 mile south-west of Portsmouth, in Portsmouth. We send applicators to Landport for mastic joints. 19 places across Portsmouth fall within our area, including Landport.
Work on mastic joints is covered throughout PO1, PO2 and PO5, whatever the building. Streets here include Lake Road, Watts Road and Alfred Road. Just outside Landport, we also work in Portsmouth (1 mile north-east), Fratton (1 mile east), Rudmore (1 mile north), Kingston (1 mile east) and North End (1 mile north). Bigger towns within reach include Wymering (3 miles north), Paulsgrove (3 miles north), Cosham (3 miles north), Drayton (3 miles north-east) and Farlington (4 miles north-east).
What’s near Landport
We work on buildings around The Painters Arms, St Edmund's Catholic School and Alexandra Park and the streets around them. Landport has its own railway station: Portsmouth & Southsea station. Well-known places in the area include Royal Portsmouth Hospital (less than half a mile south-west) and Charles Dickens Birthplace Museum (less than half a mile north). Green spaces nearby include Milton Locks and Portsdown Hill.
More services for Landport
Our process
Working in a building that stays open takes some planning. The work area is signed and kept contained, with routes through the building left open and work section by section so the rest of the building stays in use. If neighbouring businesses or buildings around Landport need work too, visits can be combined. Tell us your site hours and we’ll plan around them.
- First we look at the mastic on each building and note what needs replacing.
- We send a fixed quote that sets out the joints, the products and the programme.
- The programme is fixed with you, including dates you can pass on to residents or tenants.
- We remove the old mastic completely and clean the joint faces back.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Finished joints are looked over and the 12-month guarantee confirmed.
Getting the site ready
- Tell us which areas need to stay in use
- Tell us your opening times and when work is allowed
- Explain the parking and delivery arrangements
Get a fixed quote
A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or give us a call on 01277 525 020 or use the quote form if you’d rather talk the job through.