Best Answer

If you don't need it, you don't need to upgrade it. However, most modern homes are built with or retrofitted with 200 Amp main breaker services. Therefore, if you plan to sell, it's a good thing to do. The need for electricity isn't going down. It's going up.


It depends.

How do you heat your home? How do you make hot water? How do you dry your clothes? How do you cook?

If you use gas to do all of those things, then no, you probably don't NEED to upgrade your service from 100 amps to something larger.

If you're considering adding loads like central air conditioning, or adding a lot of circuits to your house, then you might want to.

If you're going to replace the service anyway, you might want to go for the extra amperage because the cost difference between the 100 amps, and 200 amps often isn't that great.

Right now with the price of copper, and materials, here on Long Island, you're only looking at a difference of about $300 in materials, and the labor isn't much more for a 200 amp service.

Recently, we did two services, similar jobs, but one was 100 amps, and one was 200 amps. The 100 amp service cost $2300, and the 200 amp service went for $2700.

If there's even a possibility that you might need more capacity, it's silly not to go for the 200 amp service if you need to replace the service anyway.


It depends on the amount of power you use. If you trip circuit breakers a lot, the service needs to be upgraded. Also, sometimes the wiring in the walls deteriorates. An electrician can tell you if the service is adequate or not. Odds are, if the home has a gas stove, gas water heater, gas furnace, and gas clothes dryer, 100 amps is perfectly adequate, although some new circuits may need to be added to help spread the load around. When you make any of the above items electric, that's when you start eating up your power reserve. Also you may not have enough outlets available. This is especially true in kitchens with heavy draw items like toasters, coffee makers, and other heating appliances. Or in the living room, if you're into home theatre.


You are real power hungry. In this country you are lucky indeed if you can get a 40A supply for home use! Our office have 45A supply and my home 35A, and I cannot even afford that!


The simple logical answer is YES. The average life expectancy of your electrical equipment is about 30 to 40 years. So it may be time to replace your equipment! When you do this, upgrading your house wiring for future use is a good idea. I see the trend of using more electricity - and not less - to be a safe bet.


In the UK you get a 60 amp or a 100 amp supply, at 240 v. I think mine is 60 amps and off that I have a 10-amp lighting circuit, a 30-amp ring main and a 30-amp cooker circuit. But most of the time the load is much less than that because my air-to-air heat pump for space heating uses only 3-4 amps most of the time even in cold weather.

User Avatar

Wiki User

10y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Should a 35-year-old house with 100A service be upgraded?
Write your answer...
Still have questions?
magnify glass
Related questions

What should you do if your house is on fire?

STOP DROP AND ROLL! Let it burn down your house you can always by a new upgraded one!

What do get on tv shopping on harvest moon ds?

It depends on how large your house is. If your house isn't upgraded at all you can only get: A Clock Table Tool Box Ornament Box If your house is upgraded once you can get all that and: Kitchen Shelves Refrigerator Pot Oven Mixer Frying Pan Steamer If your house is upgraded twice you can get all that and: Large Bed

Does your house have to be upgraded to marry somebody in Harvest Moon Wii game?


How do you get your house upgraded in harvest moon back to nature?

Visit Gotz's house and he'll do it for you if you have enough lumber and money.

What cribs can you edit on saints row 2?

Any house-style crib (has a living area) may be upgraded. Be aware that the Saint's main base is upgraded automatically as you progress through the story, and the docks and hangar cannot be upgraded at all.

How to get iggi on the moshiling zoo ds game?

It should be in the Wobbly woods near the end, after your fluffies house is upgraded the egg stands on a rock Plus You Need To Play a game for it to hatch

Why has your house got 100 amp fuse in the meter box but only 60 amp cable running from it?

The electric company probably upgraded your service, but the house hasn't been re-wired to take advantage of it. 60A used to be common, but 100A is much more common now.

What do I do if someone opened my mail that went to their house?

If someone has opened your mail that went to their house, you should report them to the United States Postal Service Inspection Service. They will investigate and prosecute if found guilty.

What is the limit of electricity amps watts you can have in a single house with the main breaker being changed out to its maximum potential or amps safely?

The maximum house amperage is determined by a couple things: First and most important is the size of the service wire and whether it's copper or aluminum. Second is the size of the meter base/shutoff. And third is the size of the house breaker panel. Contact a reputable electrician in your area to help you with making any changes. This isn't like changing a lightbulb. You have to know what your doing or you could burn down the house. After your electrician has determined what your upgraded service disconnect/breaker will be, he will tell the power company the requirement so they can inspect and upgrade your service drop, if necessary, to carry the additional current. We recently upgraded and the power company had to put in a new transformer on the pole.

Where should I list my Home for Sale?

You can list your house online at They are a free listing service.

When should you rewire a house?

The life span of the wiring in a typical house is between 60 to 80 years. The main electric service should be replaced about every 30 to 40 years.

A slogan for a French Maid Service it should cantain house maid service and sex orientated need catchy slogo?

Hot Lips for hire