Start with an Audit.
End with a Smarter Home.
Net-Zero Developments
Mission
You Can’t Renovate Efficiently Without Knowing What’s Wrong.
Most homes in Portugal are losing 30–50% of their energy through poor insulation, outdated systems, and wasted water.
NetZero Developments helps homeowners take control of their energy and water costs through expert audits and smart, sustainable renovations. From first inspection to final upgrade, we deliver tailored plans and full-service execution—making it simple to future-proof your home.
Our Full-Service Renovation Pathway
From Assessment to Execution
One Partner, Total Confidence.
When it comes to upgrading your home or property for energy efficiency, individual contractors and guesswork won’t get you results.
That’s why NetZero Developments offers an integrated, end-to-end approach from the very first audit to final certified delivery.
We make your renovation smarter, simpler, and more sustainable.
We Survey & Diagnose
Every renovation begins with understanding your building's true performance.
Our expert consultants carry out a comprehensive on-site or virtual audit, covering:
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Thermal imaging to reveal heat loss and insulation gaps
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Ventilation and HVAC diagnostics to check airflow efficiency
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Water flow analysis, including greywater reuse potential
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Solar orientation mapping for energy capture potential
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Cost-saving projections & grant eligibility checks
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You receive a certified audit report, tailored to EU performance frameworks like SCE, BREEAM, and Passive House.
You wouldn’t build a home without a blueprint. We don’t start a renovation without one.
Energy Plan & Roadmap
After your audit, we turn the findings into a tailored energy and renovation roadmap designed around your home, budget, and sustainability goals.
We don’t believe in one-size-fits-all upgrades. Instead, we give you a clear set of improvement options, showing what can be done, what it will save, and what funding support is available.
You’ll receive:
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A personalised renovation strategy with phased options
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Breakdown of energy and water savings at each level
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Guidance on eligible grants & finance programs (PRR & Fundo Ambiental)
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Recommendations for certification (SCE, Passive House, BREEAM)
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Timeline and investment projections for each pathway
Whether you're starting small or going all-in, we make sure your renovation plan is measurable, fundable, and future-proof.
Retrofit Delivery
Once you choose your plan, NetZero’s technical team steps in to execute every phase — safely, efficiently, and to the highest environmental standards.
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Insulation and airtightness upgrades
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Solar PV and battery storage systems
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Greywater reuse and rain harvesting (with exclusive Graytec AB tech)
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HVAC and ventilation retrofits
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Smart home energy controls and monitoring
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Final testing and certification (SCE, BREEAM, Passive House)
Our in-house experts and trusted contractor partners ensure clean work, zero stress, and full transparency — backed by real-time progress tracking and post-project support.
One expert team, one contract, one point of accountability
What We Deliver
01
Energy Consulting
We begin every project with a full home energy and water audit. Using thermal imaging, performance modelling, and utility analysis, we pinpoint where your home is losing energy or wasting water and deliver a clear, customised roadmap to improve it.
02
Solar & Smart Energy
Our team designs and installs solar panels, heat pumps, and smart thermostats to reduce your energy bills and increase efficiency. We tailor every system to your home’s layout, ensuring maximum return on investment and future-ready comfort.
03
Renovation Execution
From insulation and window upgrades to passive design and climate control, we handle every step of your renovation. With NetZero, you get a single, experienced team who manages the full process—efficiently, cleanly, and on budget.
04
Water Re-use Systems
Water is precious, especially in Portugal. We install greywater systems that reuse water from showers and sinks for toilet flushing, irrigation, and laundry—cutting water use by up to 50%. Our exclusive tech from Graytec AB leads the market in performance and reliability.
05
Certification & Cost Modeling
We make sure your project qualifies for the grants and incentives you deserve. From BREEAM and Passive House to Portugal’s SCE program, we guide you through certification and help model the savings, payback, and financial impact of every upgrade.
Mission
Let’s Make Your Home Work Smarter.
Small upgrades today can mean big savings tomorrow. Whether you’re ready to renovate or just want to understand how your home is performing, we’re here to help.
Start with an audit. End with a home that’s cheaper to run, more comfortable to live in, and ready for the future.