South East England and London
Commercial Sealant Contractors in Portsmouth
Wherever your site is in Portsmouth, our applicators cover commercial sealant contractors in 19 towns and villages, with a fixed quote and a 12-month guarantee.
Commercial Sealant Contractors across Portsmouth
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Commercial sealant contractors across Portsmouth
Sealant work for offices, shops, hotels and other commercial buildings. Choose your town from the list to see local details, or call or email us for a quote.
Larger towns
More services in Portsmouth
- Construction and new-build mastic
- Industrial and floor joint sealing
- Commercial washroom and wet-area sealing
- Coloured and colour-matched sealant
- Fire-rated sealing and fire stopping
- Facade and window perimeter sealing
- Expansion and movement joint sealing
- Mastic sealing for building owners and managing agents
Postcode districts
Our commercial sealant contractors service in Portsmouth
Most commercial buildings carry hundreds of metres of sealant that nobody thinks about until it fails, and on a working site that typically 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 Portsmouth. Our job is to diagnose the failure, remove the old bead and seal again using a product chosen for the movement and exposure. We work on external facade joints, movement joints in walls and floors and window and door perimeters, and what we are called in for most is wall and floor joints that have lost their seal and untidy joints in a reception, shop floor or lobby.
Diagnose, treat, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off.
- 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.
- We agree the order of work, access windows and site hours with you.
- The failed sealant comes out and the faces are prepared, with primer where required.
- Depth is set with backing, then the sealant is applied, tooled and the area tidied.
- Completed areas are signed off with you under our 12-month guarantee.
What affects the price in Portsmouth
Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.
Why choose Mastic Doctor
- Work carried out by CSCS-carded applicators
- Coloured sealants to suit the setting, where available
- Colour agreed before work starts
- Clear, fixed quotes
Ask for a quote
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, speak to us on 01277 525 020 or email drawings and photos.
Landmarks near Portsmouth
Recent enquiries here include premises near Manor Infant School, Alexandra Park and St Wilfrid, among other places. Nearby too are The Druids Arms (less than half a mile north-east), The Portsmouth Academy (under half a mile south-east) and St Edmund's Catholic School (0.7 miles south-west). The closest station to Portsmouth is Fratton station, roughly 0.9 miles south. Well-known places in the area include Royal Portsmouth Hospital (0.7 miles south-west) and Charles Dickens Birthplace Museum (less than half a mile west). Green spaces nearby include Milton Locks and Portsdown Hill.
Commercial sealant contractors across Portsmouth: the area picture
In Portsmouth, much commercial sealant work follows refits in shops, offices and hotels in places such as Southsea, Milton and Landport. Visible joints call for a matched colour and a clean tooled finish.
All of Greater London is inside the ULEZ, and much of the South East is within easy reach of the capital, so jobs in Portsmouth are planned with access, loading and parking in mind. In the parts of Portsmouth near the sea, the elevations facing the weather are where sealant gives up first, so they’re worth inspecting more often.
Portsmouth: If you have premises on more than one site, say at Victory Retail Park and Copnor Bridge Business Centre, one contractor and one quote can cover both. In hotels such as The Avenue Hotel, 1 mile to the north of Portsmouth, refurbishments usually mean bathroom, bar and reception joints where a matched sealant colour has to sit with the finishes.
General trades versus a specialist
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we’ll confirm the paperwork you need with the quote.
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Work for main contractors and building owners
We work for building owners and managing agents on everything from one building to a spread of sites. One quote can cover more than one site, which keeps the paperwork simple.
For main contractors, we work as the sealant subcontractor. Programme, specification and site rules come first, and our applicators hold CSCS cards.
Common problems we fix in Portsmouth
Resealing over the top is a false economy we come across often. New silicone has nothing to key into. By the time it shows, there can be two or three layers to cut out.
Things that normally lead to an enquiry:
- Greasy, split joints in a kitchen or tea point
- External beads that have gone brittle and cracked
- Messy, uneven beads from earlier work that let the building down
- Water staining near frames, panels or ceilings
Why deal with it now?
Some managers wait for a fit-out before touching the mastic. That’s reasonable for internal joints that are just tired-looking, 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
- Will failed sealant be removed rather than covered?
- Are they CHAS accredited or on Constructionline?
- Can the work be phased to keep areas open?
What sealant work can’t fix
Our job is the joint, not everything around it. Sealant alone won’t deal with:
- Structural cracks or movement the joints weren’t designed for
- Water from a services leak rather than a joint
- Leaking roofs, gutters or flat-roof membranes (those need a roofer)
Portsmouth: questions and answers
Do you work for facilities managers and managing agents?
Yes. You can send details through our quote form, and we’ll confirm any paperwork you need with the quote.
Can you follow the specification on our project?
Yes. Send it with your enquiry, and we’ll price the work to it, flagging anything that needs clarifying.
Which site documents can you send us?
The paperwork is agreed with the quote: RAMS, an insurance certificate and CSCS details are the usual requests. Our applicators are CSCS-carded.
Will your applicators have CSCS cards?
Yes. Should the site need card details in advance, let us know and we’ll send them with the quote.
Is it fine to apply new sealant on top of old?
No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.
What about asbestos in old mastic?
On older buildings, our first request is the asbestos survey. The duty to manage asbestos sits with the dutyholder and removing it isn’t something we do.
How do you choose the sealant?
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.