A deep retrofit works best when every measure is designed to work together. Rather than picking services one by one, you get a single, whole-home package, built around exactly what your home needs.
Insulation, airtightness, ventilation and heating all affect one another. Fit them in isolation and you risk condensation, cold bridging or an oversized heating system. Designed together as one package, they deliver a warmer, healthier, genuinely efficient home, and the best available BER uplift.
It’s also how SEAI’s grants are designed to work, whether through the One Stop Shop approach or individual grants for specific energy upgrades.
From the first survey to the final hand-over, everything is managed under one roof.
Your package is assembled from the measures below, we specify only the ones your home needs.
01
From initial home auditing and retrofit design to construction and final hand-over.
02
Insulating outer walls with a render or cladding finish to transform thermal performance.
03
Improve the thermal efficiency of a building by filling the empty space or “cavity” between the external walls
04
Attic insulation is a crucial component of a home’s thermal envelope, helping to regulate temperature and energy efficiency.
05
Improve the thermal performance of a building by adding insulation to the internal surfaces of external walls
06
PV panels converting sunlight into clean, sustainable electricity for your home.
07
Triple-glazed windows and doors for enhanced comfort and efficiency.
08
Airtightness prevents the uncontrolled flow of air in and out. Achieving airtightness is crucial for energy efficiency, indoor comfort.
09
Drawing heat from outdoor air to warm your home and hot water efficiently.
10
Fresh, filtered air throughout the home without the heat loss.
01
We survey your home and assess where energy is being lost to shape the right retrofit plan.
02
We work with a One Stop Shop partner to manage grants.
03
Our experienced teams deliver insulation, airtightness, renewables and renovation works.
04
We see the project through to completion and hand back a warmer, more efficient home.
Every deep retrofit lifts a home up the BER scale, Ireland’s measure of energy performance.
A
After · A3
B
C
D
E
F
Before · F
G
Every package is bespoke, but most fall into one of three levels of intervention. Final scope always follows the assessment.
Level 01
Core fabric measures, insulation and airtightness, to lift comfort and efficiency where budget is the priority.
Level 02
Fabric measures plus renewables, heat pump, ventilation and solar, for a comprehensive A-rated result.
Level 03
A full deep retrofit combined with renovation and extension works, delivered as one coordinated project.
Take the first step toward a warmer, more efficient home. Tell us about your home and we’ll guide you through every stage.
BLACKSTRAND
RETROFIT LTD
Deep retrofit & renovation specialists delivering turn-key One Stop Shop solutions to homeowners across Ireland since 2021.
© 2026 Blackstrand Retrofit Ltd. All rights reserved.