Facade Sealing contractors in Radwell
Facade sealing in Radwell, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- New sealant peeling off old mastic
- Sealant pulling away from frames or panels
- Perimeter joints where frames meet the structure
Facade sealing for businesses in Radwell
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Our process
Before we leave any area, the masking comes off, the area is cleaned and every joint is checked with your site contact. Where the sealant needs time to cure before use, we tell you and sign the area. Jobs in and around smaller places like Radwell are normally planned as a single visit, so we ask for photos and rough sizes first. That way the right products come on the day.
- Photos, drawings or a visit tell us about the joints and the access.
- Product choice follows the joint’s movement and substrate.
- The existing bead comes out in full and the joint faces cleaned.
- Primer goes on where the product data asks for it.
- Backing rod is fitted and the new sealant gunned in and tooled.
- We go over the completed work with you before leaving.
What we need from you
- Share your working hours and any access restrictions
- Move anything stored against the joints
- Tell staff and tenants when we will be in
Quotes
If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price the work to it. Smaller jobs need nothing more than photographs and a few notes.
Related advice
Facade sealing for commercial buildings in Radwell
Weather decides a lot in facade sealing. Joints have to be dry and the air and surface temperature within the product’s range, so frosty or damp mornings can hold work back. We plan for that and keep you updated. The enquiries we see most involve draughts around frames and panels and discoloured or dirty facade joints, across stone and brick facade joints, cladding panel joints and window and door perimeters. Most enquiries from Radwell start with one failed joint and grow into a wider look at the building: we look at the rest while we’re there and tell you what we find.
Construction in and around smaller places such as Radwell is often barn conversions, small groups of houses or extensions to halls and schools. Each still needs a proper mastic package: window perimeters, facade joints and internal sealant to the specification.
We stand behind the joints we seal with a 12-month guarantee. That covers our preparation and application, and we come back if anything isn’t right.
- Location
- Radwell (SG7)
- Region
- Hertfordshire
- Guarantee
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
For managing agents and facilities managers
Building owners and managing agents use us on everything from one building to a spread of sites around Radwell. Several sites can go on one quote, which keeps the paperwork simple.
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 will confirm them with the quote.
What the job involves on each surface
Cladding panel joints
Where panels are sealed rather than open-jointed, the bead is part of the weather line. We cut out failed joints along their full length and rebuild them to the correct depth.
Perimeter joints at frames and structure
The joint around a framed system, where it meets the structure, needs sealant. We seal those perimeter joints.
Radwell: questions and answers
Is hospital work, at somewhere like Fairfield Hospital, something you do?
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 Radwell too far out for you?
No. Places such as Radwell are covered as much as the big towns. London and every South East county are within our area. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.
What type of sealant goes on window perimeters?
It depends on the joint, the substrate and any specification. BS EN 15651 Parts 1 and 2 cover facade and glazing sealants, and specifications often name them and we follow the specified product.
Do you replace failed glazing units?
No. That work needs a glazing specialist. We reseal window perimeters, panel joints and frame-to-structure perimeters across the facade.
Do we need an asbestos check before resealing?
It’s worth checking in any building from before 2000. The duty to manage asbestos sits with the dutyholder, so ask for it before we start. Suspect material is left alone until it has been tested.
Is any job too small?
We quote for single jobs as well as large packages and programmes. Photos and a description are enough to start.
How long does a job like this take?
It depends on the scope, though a typical visit normally takes anything from a single day to several weeks, depending on joint lengths, access and the weather. Larger or phased jobs take longer, and we will give you a timescale with the quote.
Do you need facade sealing in Radwell?
When the sealant tears down its centre, it has typically been asked to move more than it can. Too thin a bead, too narrow a joint or a product with the wrong movement class are common reasons.
Site and facilities staff are often the first to spot these:
- Facade joints cracked through the middle
- Gaps between rainscreen or cladding panels
- Hard, chalky sealant that no longer flexes
- Draughts around frames and panels
New units and refits on sites such as Letchworth Gateway Retail Park (2 miles south of Radwell) need their panel and perimeter joints sealed to the specification.
Comparing quotes
- Their approach to joint depth and backing
- How they’ll work around occupants
- Will failed sealant be removed rather than covered?
- How they handle RAMS and site documents
Nearby places to Radwell
More services for Radwell
Contractors’ notes for Radwell
Central London is about 35 miles from Radwell. Construction around the commuter belt mixes station-side flats with refurbished offices and units, and each scheme needs its mastic sealed to programme. A number of hotels sit less than 2 miles from Radwell. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades.
For a contractor at a hotel such as The Old George And Dragon Hotel, 1.4 miles south-east of Radwell, the mastic often has to be finished before a reopening date. When a school such as Norton St Nicholas CofE (VA) Primary School is extended or refurbished, the mastic package is often squeezed into the holidays.
Radwell is about 2 miles north of Letchworth, in Hertfordshire. Commercial clients in Radwell can call on us for facade joints, as part of our coverage of Hertfordshire. Across Hertfordshire, 371 places are covered, including Radwell. For work in that direction, see our London page.
Work on facade joints is covered throughout SG7, whatever the building. Among the streets we cover are Radwell Lane and The Limes. If your building is just outside Radwell, we cover Stotfold (1 mile west), Stotfold Common (2 miles north-west), Fairfield (2 miles west) and Astwick (2 miles north-west). Bigger towns within reach include Stevenage (7 miles south), Welwyn Garden City (14 miles south), Harpenden (15 miles south-west), Hitchin (5 miles south-west), Hertford (15 miles south) and Ware (15 miles south-east).
What’s near Radwell
We work on buildings around The Knights Templar School, Norton School and The Chequers Public House, among other places. For rail, the closest station is Baldock station, roughly 1.2 miles south-east. Other landmarks nearby include Bygrave House (2 miles east) and Fairfield Hospital (1.9 miles west). Not far away are Arlesey Old Moat and Glebe Meadows.
Looking after the joints
After handover, a little attention goes a long way:
- Never let anyone seal over old sealant
- Avoid harsh cleaners on facade sealant
- Share access with other external trades
- Walk the elevations once or twice a year
Let the new sealant cure before washing the facade or windows near it. Pressure washers and harsh cleaners can damage a fresh bead.
Don’t wait for a full elevation to fail. A few metres resealed promptly can stop water damage spreading behind the facade.
When it isn’t the sealant
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Water getting in through cracked render or porous masonry
- Movement beyond what any sealant can handle
- Installing or repairing glazing systems
Not sure which it is? You can call 01277 525 020 or send details through our quote form and we’ll tell you honestly before you book.
Surfaces we seal
- Stone and brick facade joints
- Cladding panel joints
- Shopfront frames
- Perimeter joints where frames meet the structure
- Coping and flashing joints
- Window and door perimeters