Denver has a lot of housing built between 1900 and 1980, and the electrical systems in those homes were designed for a fraction of today's load. Most were compliant when installed. Several common conditions are not acceptable now.
1. Check the panel's actual capacity
Look at the main breaker. If it reads 60 or 100 amps, the service is likely undersized for a modern household — especially one adding an induction range, an EV charger, or air conditioning.
Most remodels of any scope in older Denver homes end up including a 200-amp service upgrade, and it is far cheaper to plan for it than to discover it after demolition.
2. Look for two-prong outlets
Two-prong receptacles mean ungrounded circuits. Beyond the inconvenience, ungrounded circuits offer no fault path, which matters for anything with a metal chassis and for sensitive electronics.
Replacing the receptacle with a three-prong one without running a ground is not a fix — it is a hazard that looks like a fix.
3. Identify aluminum branch wiring
Homes wired between roughly 1965 and 1973 may have aluminum branch circuits. Aluminum expands and contracts more than copper, so connections loosen over time and loose connections generate heat.
This is repairable — properly rated connectors at every device, or a full rewire — but it needs identifying and addressing, not ignoring.
4. Confirm GFCI and AFCI coverage
Current code requires ground-fault protection in specific locations. Older homes rarely have it anywhere:
- Kitchen countertop receptacles
- All bathroom receptacles
- Garage and unfinished basement outlets
- All exterior receptacles
- Anything within six feet of a sink
5. Read the warning signs you already have
Systems under stress tell you before they fail. Breakers that trip repeatedly, lights that dim when an appliance starts, warm switch or outlet plates, a faint burning smell near a device, or any discoloration around a receptacle all warrant immediate attention.
Repeated breaker trips in particular are the system doing its job — the correct response is to find the overload, never to fit a larger breaker.
If your Denver-area home predates 1980 and you are planning any remodeling, have the electrical assessed first. We provide free evaluations and will tell you plainly what needs doing now versus what can wait.