The Mastic Doctor team standing beside their branded vans outside an office building
Hampshire · England

Facade and window perimeter sealing in Portmore, Hampshire

Our CSCS-carded applicators take on facade joint and window perimeter sealing on commercial buildings in Portmore. Send details for a fixed quote.

  • Discoloured or dirty facade joints
  • Facade joints cracked through the middle
  • Patch repairs that keep failing
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS accredited
£5m PL insurance

Facade sealing in Portmore

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Sites and facades in and around Portmore

Portmore is within about 1 mile of the coast. Schemes this close to the sea see their facade joints tested by wind and rain from the day they’re sealed, so joint design, primers and product choice deserve extra care. A 2-mile radius around Portmore takes in a number of hotels. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.

Hospital estates such as Lymington New Forest Hospital (1 mile south-west of Portmore) tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan. Older buildings in the area around Portmore, such as Beaulieu Palace House, 4.5 miles to the north-east of Portmore, need care when sealed: the product has to suit soft or historic materials. Hotel extensions and refits, at places such as Macdonald Elmers Court Hotel & Resort, 1.2 miles to the south of Portmore, typically run between busy periods, so the sealing is squeezed into short windows.

Portmore is about 2 miles north-east of Lymington, in Hampshire. If you’re looking for facade sealing in Portmore, we can help. Portmore is one of 723 places we cover in Hampshire. For work in that direction, see our Southampton page.

Commercial sites across SO41 are covered. Buildings on Warborne Lane, Jordans Lane and Main Road are within our area. If your building is just outside Portmore, we cover Warborne (1 mile west), Pilley (1 mile north-west), Bull Hill (1 mile north), Pilley Bailey (1 mile north) and Walhampton (1 mile south). Bigger towns within reach include Eastleigh (15 miles north-east), Fareham (15 miles east), Totton (10 miles north), Hedge End (14 miles north-east), Romsey (15 miles north) and Hythe (8 miles north-east).

Near you in Portmore

We work on buildings around William Gilpin Church of England Primary School, Priestlands School and Walhampton Arms. The closest station to Portmore is Lymington Town station, roughly 1.1 miles south-west. A little further out are Lymington New Forest Hospital (1 mile south-west) and Yarmouth Castle (4.8 miles south). For a walk, there’s Boldre Foreshore.

Map of Portmore © OpenStreetMap contributors

About our facade sealing in Portmore

External joints face UV, rain, temperature swings and building movement all year, so they don’t last indefinitely. Life depends on movement, weathering, product choice and the quality of the original work. When it fails, the whole bead is cut away and the joint rebuilt. If you are dealing with water coming in around window frames and old perimeter mastic that has dried out, we can help. A single leaking joint is often how a building in Portmore first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.

In the countryside around places like Portmore, conversion schemes put new frames into old stone, flint, brick or timber. Those joints need a sealant that suits an uneven, sometimes porous surface, and often a colour chosen for the building.

Whoever the client is, the cover is the same: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Portmore (SO41)
Region
Hampshire
Cover
A 12-month guarantee
Quotes
Quoted before any work starts
Telephone
01277 525 020
Updated
3 November 2026

What affects the price in Portmore

What shapes the price:

  • How accessible the joints are
  • How much existing material needs removing
  • Specialist products, such as fire-rated or hygienic sealants
  • The size and state of each joint

Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Details that help us quote

Good information means a firmer quote. When you get in touch, include:

  • The asbestos register, for older buildings
  • Any specification or named product
  • Clear photos of the problem areas
  • Whether the building will be occupied during the work

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to call the office on 01277 525 020 or use the quote form with what you know.

On site: what to expect

At the end of each section, we remove the tape, clean down and inspect every joint. Where the sealant needs time to cure before use, we tell you and sign the area. Jobs in and around smaller places like Portmore are typically planned as a single visit, so photos and measurements up front really help. Then the right materials arrive with us.

  1. We plan access and the order of elevations with the client.
  2. Weather and temperature are checked against the product’s limits.
  3. Each joint is cut out and the edges inspected.
  4. Joints are cleaned, primed if required and fitted with backing rod.
  5. Sealant is gunned in and tooled hard onto both faces.
  6. Once signed off, the work carries our 12-month guarantee.

What we need from you

  • Arrange parking or a loading space
  • Warn occupants and staff about the work
  • Share your working hours and any access restrictions

Getting a fixed quote

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or email drawings and photos.

Get a price

Read more

For managing agents and facilities managers

Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Portmore can form part of a wider programme.

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.

Why it’s worth doing now in Portmore

Scaffold or access already on site makes resealing much simpler. Combine it with planned external works and you only arrange access once, which is often the biggest saving. Around Portmore, it’s better to renew all the failing joints at once, rather than one at a time. Photos of every joint help us quote for the whole job.

Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote and we’ll put a fixed figure on it.

What you get with us

  • One contact handling all your sites
  • Old sealant cut out, never sealed over
  • Fully insured
  • Sealing commercial buildings since 2005

Take a look at how commercial sealant jobs are priced or how we’re accredited.

When to bring in a specialist

Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.

Aftercare for building managers

Regular inspection catches problems early. In particular:

  • Share access with other external trades
  • Don’t wait for a second leak before calling
  • Add perimeter sealant to planned maintenance checks
  • Check that rainwater leaves the facade the way it was designed to

Keep a note of which product went in and when. It helps when matching repairs or planning the next reseal.

Planned resealing is cheaper than reacting to leaks. Regular checks let you renew joints before water gets in.

Common questions from Portmore clients

Do you take on work at healthcare sites like Lymington New Forest Hospital?

Yes. We work in healthcare settings as well as offices and schools. Work is phased so departments keep running, under the site’s own rules.

Is Portmore too small for you to travel to?

Not at all: smaller places are covered as well as towns. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.

Will you quote for a small job?

We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.

How much does the work cost?

It depends on the job: the volume of work, the access, the specified product and how it’s phased. Call for a fixed quote and we will price it properly.

Do you seal on top of existing sealant?

No, never. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.

Are you CHAS accredited and on Constructionline?

Yes. We’re CHAS accredited, we’re a Constructionline member and we use CSCS-carded applicators.

How soon can the area be used again?

We will confirm how long the chosen product needs to cure, and sign any area that should be left alone.

Accreditations

Trusted. Accredited. Insured.