Installation Guides
Step-by-step instructions for installing Kalsi products correctly. Written by our technical team for professional installers and competent DIYers.
12 guides available
Rainwater Systems
Half-Round Gutter Installation
Complete guide to installing half-round guttering including bracket spacing, fall calculation, downpipe positioning, and joint assembly. Covers both fascia-mounted and rafter-mounted bracket methods.
Rainwater Systems
Ogee Gutter Installation
Step-by-step fitting of ogee-profile guttering systems. Includes special considerations for the ogee bracket system, expansion joint placement, and running outlet positioning.
Underground Drainage
110mm Underground Drainage
Laying 110mm drainage pipe including trench preparation, bedding requirements (pea gravel or granular material), gradient calculation, and inspection chamber installation to BS EN 1401.
Underground Drainage
160mm Underground Drainage
Installation of 160mm large-bore drainage systems for commercial and multi-residential applications. Covers jointing, bedding class requirements, and connection to existing systems.
Soil & Waste
Push-Fit Soil Stack Installation
Installing a push-fit soil stack from ground floor to roof termination. Covers pipe cutting, branch connections, fire stopping at floor penetrations, and weathering slate fitting.
Soil & Waste
Solvent Weld Waste System
Guide to installing solvent weld waste pipe systems including 32mm and 40mm applications. Covers joint preparation, cement application, setting times, and trap installation.
Roofline
Fascia & Soffit Replacement
Removing old timber fascia and soffit boards and fitting PVC-U replacements. Includes rafter end treatment, ventilation requirements (Approved Document C), and finishing details.
Roofline
Capping Board Installation
Fitting 9mm capping boards over existing timber where boards are in sound condition. Quick, cost-effective method for refreshing roofline appearance without full replacement.
Wall Panelling
Bathroom Wall Panel Installation
Fitting PVC wall panels in bathrooms and shower enclosures. Includes surface preparation, adhesive selection, cutting techniques, corner trims, and waterproofing considerations.
External Cladding
External Shiplap Cladding
Fitting shiplap and weatherboard cladding to external walls. Covers batten spacing, starter trims, window reveals, expansion gaps, and ventilation requirements.
MDPE Pipe
MDPE Water Pipe Installation
Laying blue MDPE pipe for potable water supply. Covers pipe jointing (compression and electrofusion), trench depth requirements, and connection to water mains.
External Cladding
Slatted Cladding / Slat Wall Installation
Installing our DuraKlad slatted cladding system. Includes batten framework, clip fixing, corner finishing, and maintenance guidance for modern contemporary external finishes.
Installation Best Practices
- Always read the full installation guide before starting work
- Check all components and quantities before installation
- Use only Kalsi-recommended fixings and adhesives
- Allow for thermal expansion—follow expansion gap guidance
- Register products within 30 days for extended guarantee
- Contact technical support if you're unsure—we're here to help
Technical Support
Got a question during installation? Our technical team can talk you through any issue.
0121 693 0373 Contact SupportVideo Tutorials Coming Soon
We're developing video installation guides to complement our written guides. In the meantime, visit our video library for manufacturing and product overview content.